Alliance

The state of being allied; the act of allying or uniting; a union or connection of interests between families, states, parties, etc., especially between families by marriage and states by compact, treaty, or league; as, matrimonial alliances; an alliance between church and state; an alliance between France and England.

Any union resembling that of families or states; union by relationship in qualities; affinity.

The persons or parties allied.

To connect by alliance; to ally.

a formal agreement establishing an association or alliance between nations or other groups to achieve a particular aim

a connection based on kinship or marriage or common interest; "the shifting alliances within a large family"; "their friendship constitutes a powerful bond between them"

the state of being allied or confederated