ally (n.)

  1. a friendly nation

  2. an associate who provides cooperation or assistance; hes a good ally in fight

    [ Syn: friend ]

    ally (v.)

  1. become an ally or associate, as by a treaty or marriage; He allied himself with the Communists'

The dictionary is based on the WordNet Electronic Lexical Database.
WordNet 3.0 Copyright 2011 by Princeton University. All rights reserved.