Definition of ally:
- A relative; a kinsman.
- Anything akin to another by structure, etc.
- Anything associated with another as a helper; an auxiliary.
- One united to another by treaty or league; - usually applied to sovereigns or states; a confederate.
- See Alley, a marble or taw.
- To connect or form a relation between by similitude, resemblance, friendship, or love.
- To unite, or form a connection between, as between families by marriage, or between princes and states by treaty, league, or confederacy; - often followed by to or with.
henchman, link, federate, protagonist, bind, champion, abetter _or_ abettor, retainer, coadjutor, accessory, align, attendant, follower, admirer, politics, combine, conjoin, booster, league, participator, helper.
- co-operate (part of speech: verb)
- friend (part of speech: noun)
- join (part of speech: verb)
- confederate (part of speech: noun)
- "Helena Brett's Career", Desmond Coke.
- "The Struggle for Missouri", John McElroy.
- "A History of English Literature Elizabethan Literature", George Saintsbury.