/ Dictionary / Index A alliance: Meaning and Definition of Find definitions for: al•li•ance Pronunciation: (u-lī'uns), [key] — n. the act of allying or state of being allied. a formal agreement or treaty between two or more nations to cooperate for specific purposes. a merging of efforts or interests by persons, families, states, or organizations: an alliance between church and state. the persons or entities so allied. marriage or the relationship created by marriage between the families of the bride and bridegroom. correspondence in basic characteristics; affinity: the alliance between logic and metaphysics. Al•li•ance Pronunciation: (u-lī'uns), [key] — n. a city in NE Ohio. 24,315. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: alliance (Thesaurus) alliaceous Alliance for Progress Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language