N - O - P
Non-hierarchical polyamory:
Multiperson relationship where all have equal ties to the other.
Non-monogamy:
The practice of creating intimate relationships that may include sexuality which do not require sexual exclusivity. As a result, there may or may not be more than one such relationship occurring at a time.
NRE:
New Relationship Energy That lovely euphoria you experience when you become involved with a new love.
Open Relationship or Open Marriage:
A non-monogamous relationship or marriage. A relationship is open if there is an agreement among the members that it is acceptable to get sexually and/or romantically involved outside of the relationship. Specific rules within a relationship about such involvement are usually negotiated to best fit the people in the relationship. For instance, one or more members may want prior notification of any outside involvement by another member.
Poly:
Short for polyamorous.
Polyamory:
The non-possessive, honest, responsible ethical philosophy and practice of loving multiple people simultaneously. Based on the conscious choice of how many partners one wishes to be involved with, rather than accepting social norms that dictate monogamy as the only acceptable form of love.
Polyandry:
the state or practice of having two or more husbands at the same time.
Polyfidelity:
A group in which all partners are primary to all other partners and sexual fidelity is to the group. More primary partners can be added with the entire group's consent. Coined by the Kerista Commune.
Polygamy:
the practice of having more than one wife or husband at a time.
Polygyny:
the state or practice of having two or more wives at the same time.
PolyMarriage:
1: the state of being committed in multiple partnered relationship
2: a multiple partnered relationship where a commitment ritual was performed
3: any close or intimate multi partnered union of duration
Primary:
In a hierarchical, multiperson relationship, the primary partner is the one to whom one is most strongly bonded, often through legal marriage.
Q - R - S
Quad:
a multiple partnered relationship with four members.
Secondary:
The person or people with whom one is involved without the emotional, legal or economic commitments of primary bonding.
Serial Monogamy:
Succession of monogamous partners over time; overlapping sexuality only in the transition from the current to the next partner.
T - U - V - W - X - Y - Z
Tertiary Relationship:
A friendly but casual sexualove relationship of an occasional or temporary nature.
Triad:
"Marriage" of three people with equal commitments to each other.
Tribe:
A social group that has a strong sense of identity and may have a family arrangement as its core.
Vee:
Three people in a relationship, where the "pivot point" partner is strongly involved with the other two, and they less so with each other.