ETYM Old Eng. aliaunce, Old Fren. aliance, French alliance, from Old Fren. alier, French allier. Related to Ally, Late Lat. alligantia.
1. The state of being allied or confederated; SYN. confederation.
2. A formal agreement establishing an association or alliance between nations or other groups to achieve a particular aim.
3. An organization of people (or countries) involved in a pact or treaty; SYN. coalition, alignment, alinement.
4. A connection based on kinship or marriage or common interest; SYN. bond.