Allied

adj. connected by an agreement; joined

v. make a pact with -, join with -

See the related articles: Allies of World War I and Allies of World War II. For the Stargate Atlantis episode, see Allies (Stargate Atlantis). Allies spelled with a capital "A", usually denotes the countries who fought together against the Central Powers in World War I (see Triple Entente or Allies of World War I), or those who fought against the Axis Powers in World War II.
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Adjective
1. related by common characteristics or ancestry; "allied species"; "allied studies"
(similar) related
2. united in a confederacy or league
(synonym) confederate, confederative
(similar) united
3. joined by treaty or agreement
(similar) aligned

Noun
1. a friendly nation
(hypernym) state, nation, country, land, commonwealth, res publica, body politic
(member-holonym) alliance, coalition, alignment, alinement
2. an associate who provides assistance; "he's a good ally in fight"; "they were friends of the workers"
(synonym) friend
(hypernym) associate
(hyponym) blood brother
Verb
1. become an ally or associate, as by a treaty or marriage; "He allied himself with the Communists"
(hypernym) consort, associate, affiliate, assort
(hyponym) misally
(derivation) friend

(imp. & p. p.)
of Ally
  

(a.)
United; joined; leagued; akin; related. See Ally.
  

Synonyms and related words:
affiliate, affiliated, affinitive, agnate, akin, assembled, associate, associated, avuncular, banded together, bound, bracketed, cabalistic, closely related, cognate, collateral, collected, confederate, confederated, congeneric, congenerous, congenial, conjoined, conjugate, connate, connatural, connected, consanguine, consanguinean, consanguineous, conspecific, conspiratorial, copulate, corporate, correlated, correlative, coupled, distantly related, enate, enleagued, federate, federated, foster, gathered, german, germane, hand-in-glove, hand-in-hand, implicated, in cahoots, in league, in partnership, in with, incident, incorporated, integrated, interlinked, interlocked, interrelated, intimate, involved, joined, kindred, knotted, leagued, linked, married, matched, mated, matrilateral, matrilineal, matroclinous, merged, novercal, of that ilk, of that kind, of the blood, paired, parallel, partners with, patrilateral, patrilineal, patroclinous, related, sib, sibling, similar, spliced, teamed, tied, twinned, undivided, united, unseparated, uterine, wed, wedded, yoked,