Metamour (noun) – Your lover’s lover. In polyamory you may have a romantic relationship with someone who has more than one ongoing romantic relationship. Someone that your romantic partner is in such a relationship with, but you are not, is a Metamour.
Chris is in a romantic relationship with Jenny. Diva is also in a romantic relationship with Chris. Diva and Jenny are just metamours.
A relationship style in which a person shares sex and/or romantic love with one other person. Most commonly, monogamy is practiced by couples that are exclusively sharing sex and romantic love with each other. There are relationships in which one partner practices monogamy, while their partner practices some form of non-monogamy.
A nesting partner is one that you share living space with. This may or may not include: owning property, sharing finances, or raising children. It is possible to have multiple nesting partners, and multiple nests (homes).
New relationship energy (NRE), is a euphoric emotional state associated with the early phase of a romantic relationship.
A relationship style in which having romantic or sexual connections with more than one other person is possible.
Any relationship structure that is not monogamous. This can include polyamory, relationship anarchy, swinging, or any romantic or sexual connection that allows for other romantic or sexual connections.
Robin and Charlie are married to each other and have an open relationship. Robin occasionally has sex with Ryley. Charlie has a long-term romantic relationship with Jaylin.
A relationship style in which the relationships with multiple partners stay very separate. Metamours don’t frequently interact. It is, perhaps, the opposite of kitchen table polyamory.
Paramour (noun) – A lover. In polyamory you may have a romantic relationship with one or more lovers. Those lovers may or may not have romantic or platonic relationships with each other.
Chris is in a romantic relationship with Dottie, and Chris is also in a romantic relationship with Dennis, Dawn, and Diva. All of them are Chris’ Paramours.
Polya is a proposed replacement for poly, as a shortened version of polyamorous.
Polyam is a proposed replacement for poly, as a shortened version of polyamorous.