Glossary
The language of ethical non-monogamy.
From compersion to metamour to fluid-bonding. 101 terms, cross-referenced, plain-language, written for adults who want clarity, not jargon. New entries added regularly.
A
- Abundance and scarcity mindset — Two contrasting orientations toward love and connection. A scarcity mindset treats love and attention as finite and competed-over; an abundance mindset holds that love is not a zero-sum resource — a frame many practitioners credit for making non-monogamy workable.
- Agreement — An explicit, negotiated understanding between partners about how the relationship will operate — distinguished from rules in modern polyamory writing by being mutual rather than imposed.
- Amatonormativity — The widespread assumption that a central, exclusive, romantic-sexual partnership is the universal goal everyone should organise their life around — and that lives without one are lacking.
- Ambiamorous — Comfortable in either monogamous or non-monogamous configurations — capable of fulfillment in both, choosing based on a specific relationship rather than a fixed orientation.
- Anchor partner — A non-hierarchical term for a partner with deep practical entwinement — shared home, finances, decisions — without designating other relationships as lesser.
- Attachment theory — A framework describing how early bonds shape adult patterns of seeking and responding to closeness — secure, anxious, avoidant, disorganised — increasingly used in ENM to understand why some configurations feel safe and others don't.
B
- Boundary — A statement about yourself — what you will or will not do in given circumstances — distinguished from a rule, which is a statement about what another person must do.
- Bull — A single man who is the outside partner in a hotwife or cuckolding dynamic — the person the couple invites into their agreed arrangement.
C
- Check-in — A regular, scheduled conversation where partners review how the relationship is going and surface concerns early — a cornerstone practice of healthy non-monogamy, since more relationships mean more to keep track of.
- Chosen family — The network of people one treats as family by deliberate choice rather than by birth or marriage — a concept originating in queer community and widely embraced by polyamorous practice.
- Closing the relationship — The process of returning from an opened structure to a more constrained one — typically monogamy or a tighter version of the current arrangement.
- Comet partner — A partner whose presence in your life is periodic — geographically distant, occasionally visiting, intermittently in close orbit and otherwise far away.
- Compersion — The felt-sense of joy at a partner's joy with another partner — sometimes described as the emotional opposite of jealousy.
- Consensual non-monogamy (CNM) — The umbrella term for any relationship structure in which all partners knowingly agree to romantic or sexual connections with more than one person. Used interchangeably with ethical non-monogamy.
- Consent — The freely-given, informed, ongoing agreement of everyone involved. Consent is the single feature that distinguishes ethical non-monogamy from cheating, and it must be specific, revocable, and uncoerced.
- Constellation — An alternative term for polycule — the web of romantic and intimate connections that includes someone's partners, those partners' partners, and so on.
- Couple hunting — An established couple searching for another couple, or a third person, to play or partner with. Ethical when the people sought are treated as full participants; problematic when it mirrors the objectifying pattern of unicorn hunting.
- Couple privilege — The structural advantages an established couple holds in a polycule — legal, financial, social, practical — by virtue of being a recognised couple.
- Cowboy / cowgirl — A pejorative term for a monogamous person who dates a polyamorous person while privately intending to lure them away from polyamory into a monogamous relationship.
- Cowgirl — The female counterpart to a 'cowboy': someone who dates into a polyamorous relationship intending to peel their partner away from the others and rope them back into monogamy.
- Cuckolding — A consensual erotic dynamic in which one partner derives arousal from their committed partner having sex with others, often involving themes of watching, exclusion, or relative submission — distinct from non-consensual infidelity that the older word once described.
- Cuckquean — The female-presenting counterpart to a cuckold: a woman whose arousal is built around her partner having sex with others, often involving themes of watching or relative submission. Consensual by definition.
- Cushioning — Maintaining several flirtatious or low-grade romantic backup connections in case a primary relationship ends — common in monogamous dating, sometimes occurring as a misuse of polyamory's openness.
D
- Don't ask, don't tell — An arrangement in which partners agree that outside connections are permitted, but information about them is not shared between partners.
- Dragon — Community slang for a single man sought by an existing couple to join them — the male counterpart to the 'unicorn,' and, like unicorn hunting, prone to the same ethical pitfalls when the third is treated as an accessory.
E
- Egalitarian polyamory — Polyamory practised without ranking partners — no designated primary, no relationship structurally outranking another. Closely related to non-hierarchical polyamory, with the emphasis on treating each relationship as free to find its own level.
- Emotional cheating — Breaking a relationship's agreements through an emotionally intimate connection rather than a sexual one. In ENM it is defined by the broken agreement, not by the sex — which is why ENM relationships can still be cheated on.
- Ethical non-monogamy — An umbrella term for relationship structures in which everyone involved knows about, and consents to, the participants having more than one romantic or sexual connection.
- Exhibitionism — Deriving arousal from being watched while intimate, consensually. The natural counterpart to voyeurism, and a common, openly-negotiated element of LifeStyle club and party play.
F
- Fluid bonding — An explicit agreement between partners about which connections involve barrier-free fluid exchange, framed as a safer-sex decision rather than an emotional escalation.
- Full swap — A LifeStyle comfort level in which couples include penetrative sex with other partners, as distinct from the kissing-and-touching boundary of a soft swap.
G
H
- Hatching — The process by which a previously-monogamous couple opens their relationship and begins practising ethical non-monogamy for the first time.
- Hierarchy — Any structure that formally ranks relationships, typically into primary and secondary. A key distinction is descriptive hierarchy (naming how life is actually entangled) versus prescriptive hierarchy (rules that cap how much a relationship is allowed to grow).
- Hinge — The shared partner connecting two metamours in a V — the person at the apex who is partnered with both of the others.
- Hotwifing — A consensual non-monogamy dynamic in which a woman in a committed relationship has sexual experiences with other partners, with her partner's enthusiastic knowledge and often their active encouragement.
J
K
- Key party — A largely historical swinging gathering — popularised in 1970s lore — where attendees' keys were drawn at random to pair people for the night. Mostly a cultural artefact today; modern LifeStyle practice is consent-forward, not chance-based.
- Kitchen-table polyamory — A polyamory style in which the people across a polycule — partners and metamours — can comfortably hang out together, share meals, and share friendships.
L
- LifeStyle — A consent-based social and sexual community of couples and singles who share recreational intimate connections, typically without the romantic-partnership dimension that defines polyamory. Older vocabulary calls this swinging.
- LifeStyle club — A venue catering to the LifeStyle community, where couples and vetted singles socialise and — at on-premise clubs — may play on site. Off-premise clubs are social-only, with play happening elsewhere.
- Limerence — An intense, often intrusive, sometimes-unreciprocated obsessive attachment that the psychologist Dorothy Tennov named in the 1970s — related to but more clinical than the community term NRE.
M
- Meet and greet — A low-pressure social meetup where LifeStyle or non-monogamy people get to know each other in a public or social setting, with no expectation of play — the standard, recommended first step for newcomers.
- Metamour — Your partner's other partner. Your partner-in-law, in a sense — a person you are connected to through a shared partner but are not themselves partnered with.
- Molecule — Affectionate slang for a large or complex polycule, drawn from the way relationship maps resemble the ball-and-stick molecular diagrams from chemistry class.
- Mono-poly relationship — A relationship in which one partner is polyamorous (or non-monogamous) and the other is monogamous — with explicit, ongoing consent from both.
- Monogamish — A largely-monogamous relationship that has agreed-on, often narrow, exceptions to strict exclusivity — typically rare, usually sexual, often situational.
- Mononormativity — The cultural and structural assumption that monogamous, dyadic, life-long pair-bonded romantic relationships are the natural and correct form, with other configurations treated as deviations.
N
- Nesting partner — The partner you share a home with — used specifically to describe the cohabiting relationship without implying ranked hierarchy.
- NRE — The intense, heady, infatuated feelings of a brand-new romantic connection — a real phenomenon with predictable effects that polyamorous people learn to handle deliberately.
O
- On-premise / off-premise — The two basic types of LifeStyle venue. On-premise clubs provide spaces to play on site; off-premise clubs are social-only, with any play happening elsewhere afterward.
- One-penis policy (OPP) — A controversial agreement in which a man permits his woman partner to have other women partners but not other men. Widely critiqued as enforcing male insecurity and biphobia rather than any coherent ethic.
- Open relationship — A committed primary relationship in which the partners have agreed that outside sexual, and sometimes romantic, connections are allowed within negotiated terms.
- Opening the relationship — The process by which a previously-monogamous relationship transitions to a non-monogamous structure — typically a months-long conversation rather than a single decision.
- ORE — The settled, deep, steady energy of a long-running relationship — the counterpoint to NRE, and the thing NRE is in danger of making a partner overlook.
P
- Parallel polyamory — A polyamory style in which partners and metamours intentionally do not socialise — each relationship runs on its own track without intersection.
- Paramour — An older, somewhat literary word for a romantic or sexual partner, used in some polyamory circles as a neutral name for a partner — and the root of the related term metamour.
- Platonic life partner — A person you build a shared life with — home, finances, sometimes children — as a primary partner, without the relationship being romantic or sexual.
- Play party — A private social gathering, in a home or a venue, where consenting adults may engage in sexual activity — a core institution of LifeStyle and kink communities, organised around explicit etiquette and consent norms.
- Polyaffective — The non-sexual, non-romantic affection that develops between metamours and across polycules — coined by sociologist Elisabeth Sheff to name the bond that isn't romantic but is real.
- Polyam — The community-preferred shortening of 'polyamorous' / 'polyamory,' increasingly used in place of 'poly' to avoid colliding with Polynesian people's reclaimed use of 'Poly.'
- Polyamory — The practice of, or willingness to engage in, multiple loving romantic relationships, with the knowledge and consent of everyone involved.
- Polybomb — Disclosing to someone — a date, a partner, a family member — that you're polyamorous, especially when it lands as a sudden, heavy revelation. The term captures both the act and the hope of doing it more gracefully.
- Polycule — The web of romantic connections between a group of people — the network you would draw if you sketched everyone's relationships as nodes and edges.
- Polyfamily — A polycule that functions as a chosen family — shared household, shared finances, often shared parenting — across more than two adults.
- Polyfidelity — A relationship structure with three or more committed partners who are not open to additional partners outside the group.
- Polygamy — Marriage to more than one spouse at once — a marital and often religious institution. It is distinct from polyamory, with which it is frequently confused: polygamy is about marriage, polyamory is about loving relationships.
- Polynormativity — The tendency to present one narrow version of polyamory — usually a couple-centred, hierarchical, heterosexual model — as the respectable default, marginalising the messier or more radical configurations.
- Polyqueer — An identity and lens at the intersection of polyamory and queerness — naming how being both non-monogamous and LGBTQ+ shapes a person's relationships, communities, and the assumptions they navigate.
- Polysaturated — Having as many partners as your time, energy, and emotional capacity can support — not open to forming additional connections at present.
- Polysecure — Both a book by Jessica Fern (2020) and a community shorthand for the practice of secure attachment in polyamorous relationships. Widely cited in ENM-affirming therapy.
- Polywise — The ongoing practice of secure polyamory — the work of maintaining secure attachment across multiple relationships once the foundations are built.
- PrEP — Pre-exposure prophylaxis — medication taken to prevent HIV infection. A common, openly-discussed part of safer-sex strategy in non-monogamous and LifeStyle networks.
- Primary partner — In hierarchical polyamory, the partner with the most entwined life — shared household, finances, often parenting — and typically the highest agreed claim on time and life decisions.
Q
- Quad — A four-person polycule with various internal connections — sometimes all four interconnected, sometimes a specific subset of edges.
- Queerplatonic relationship (QPR) — A committed, central relationship that doesn't fit the conventional romantic-or-just-friends binary — as serious and entangled as a partnership, but not defined by romance or sex.
R
- RADAR — A structured periodic relationship check-in developed by the Multiamory podcast. The acronym walks partners through Review, Agree, Discuss, Action points, and Reconnect.
- Relationship anarchy — An approach to relationships that rejects ranked hierarchies, prescriptive escalator scripts, and the assumption that romantic relationships should be valued above platonic ones.
- Relationship escalator — The culturally prescribed trajectory that monogamous relationships are expected to follow — date, exclusive, move in, marry, parent, stay forever — treated as the natural shape rather than one option among many.
- Rule — A constraint one partner places on another's behaviour. Modern ENM writing draws a sharp line between rules (which try to control another person) and boundaries (which govern your own actions) — and tends to favour boundaries.
S
- Safer sex — The practices a non-monogamous network uses to manage sexual-health risk together: barrier use, regular STI testing, PrEP, honest disclosure, and explicit agreements about who is fluid-bonded with whom.
- Safeword — A pre-agreed word that immediately pauses or stops an encounter, regardless of what's being said in the scene. A consent tool from kink culture that carries over into LifeStyle and group-play settings.
- Same-room / separate-room — A LifeStyle boundary describing whether partners stay in the same room while playing with others (same-room) or play in different rooms (separate-room).
- Satellite partner — A partner who is meaningfully connected but lives separately and is not enmeshed in day-to-day domestic life — orbiting the relationship rather than nested at its centre.
- Secondary partner — In hierarchical polyamory, a partner with less life-entwinement than the primary — meaningful relationship, less infrastructure-sharing.
- Soft swap — A LifeStyle comfort level in which couples engage in some sexual activity with other partners — typically kissing, touching, and oral — while reserving penetrative sex for their own partner.
- Solo polyamory — Polyamory practised without a primary or nesting partner, with autonomy and self-defined life as organising principles rather than partnership-as-default.
- Spice — A playful collective term for multiple spouses or serious partners — formed as a mock-plural of 'spouse' the way 'mice' is the plural of 'mouse.'
- Stag and vixen — A reframing of the hotwife dynamic that emphasises pride and partnership: the vixen has outside experiences and the stag actively celebrates them, with the couple presenting as a confident team rather than around any theme of humiliation.
- Swinging — Recreational sexual activity between committed couples and vetted singles, organised around shared experiences rather than the multiple loving partnerships that define polyamory. The community's own current term is the LifeStyle.
T
- The Ethical Slut — The 1997 book by Janet W. Hardy and Dossie Easton that is widely considered the foundational text of modern ethical non-monogamy. Updated in 2009 and 2017.
- Throuple — A romantic relationship between three people. A casual, popular-media synonym for a triad — most often used when all three partners are involved with one another.
- Triad — Three people, each partnered with the other two — a complete triangle of romantic connection.
- Two-spirit — A modern, pan-Indigenous English umbrella term for the gender and sexual identities held within many Native American and First Nations cultures. It is specific to Indigenous people and is not a general LGBTQ+ or relationship-style label.
U
- Unicorn — A bisexual or queer woman who dates established couples as a third — used neutrally by some, pejoratively in the context of unicorn-hunting, depending entirely on the dynamics involved.
- Unicorn hunting — The practice of an established couple seeking a third — typically a bisexual woman — to join them as a single unit, with the couple's needs structurally prioritised.
V
- V (vee) — A polycule shape in which one person is partnered with two others who are not partnered with each other.
- Veto — An agreement granting one partner unilateral power to end another of their partner's outside relationships — common as a structure, widely criticised in its strong form.
- Vetting — The practice of checking a prospective new partner or play contact for safety, honesty, and basic compatibility before meeting or playing — a core safety norm in the LifeStyle, kink, and online-dating ENM communities.
- Voyeurism — Deriving arousal from watching others be intimate, consensually. In the LifeStyle, voyeurism and its counterpart exhibitionism are common, openly-negotiated parts of party and club play.