Chiefly followed by with: to enter into an alliance or unite for a common aim.
To unite or form a connection between (people or things), as between families by marriage, or between states by confederacy, league, or treaty.
To join or unite (oneself or itself) against, with, etc., someone or something else.
Chiefly followed by to or with: to connect or form a relation to (someone or something) by similarity in features or nature.
Something regarded as connected with or related to another thing by similarity in features or nature.
A person who co-operates with or helps another; an associate; a friend.
A person who, or organization which, supports a demographic group subject to discrimination and/or misrepresentation but is not a member of the group; specifically (LGBT), a person who is not a member of the LGBT+ community but is supportive of it.
A person, group, state, etc., which is associated or united by treaty with another for a common (especially military or political) purpose; a confederate.
An organism which is related to another organism through common evolutionary origin; specifically, a species which is closely related to another species, usually within the same family.
A person, group, concept, etc., which is associated with another as a helper; an auxiliary; a supporter.
Cause to become one; make into a unit; consolidate; merge; combine.
Become one.