- joined, as by treaty, agreement, or marriage; united
- of the same type or class; related
WordReference Random House Learner's Dictionary of American English © 2026
al•lied /əˈlaɪd, ˈælaɪd/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2026- joined by treaty or common cause:allied nations.
- related;
kindred:[before a noun]allied species. - Government of or relating to the Allies:[before a noun* Allied]the Allied forces.
al•lied
(ə līd′, al′īd),USA pronunciation adj.
- joined by treaty, agreement, or common cause:allied nations.
- related;
kindred:allied species. - Government(cap.) of or pertaining to the Allies.
- 1250–1300; Middle English; see ally, -ed2
- 2. akin.
Collins Concise English Dictionary © HarperCollins Publishers::
allied /əˈlaɪd; ˈælaɪd/ adj
al•ly /n. ˈælaɪ, əˈlaɪ; v. əˈlaɪ/USA pronunciation
n., pl. -lies, v., -lied, -ly•ing.
n. [countable]
v.
-ally, suffix.
WordReference Random House Unabridged Dictionary of American English © 2026n. [countable]
- Governmenta nation, group, or person associated with another or others for some common cause or purpose.See Allies.
v.
- Governmentto unite formally, such as by treaty, league, or marriage;
enter into an alliance: [~ + oneself + to/with + object]Russia allied itself with France.[no object]They allied against the common enemy. - to associate or connect by some mutual relationship:[~ + oneself + to/with + object]They allied themselves with the stockholders to gain control of the company.
-ally, suffix.
- -ally is used to form adverbs from certain adjectives ending in -ic: terrific (adj.) + -ally → terrifically (adv.).
al•ly
(v. ə lī′;n. al′ī, ə lī′),USA pronunciation v., -lied, -ly•ing, n., pl. -lies.
v.t.
v.i.
n.
al•li′a•ble, adj.
-ally,
v.t.
- Governmentto unite formally, as by treaty, league, marriage, or the like (usually fol. by with or to):Russia allied itself to France.
- to associate or connect by some mutual relationship, as resemblance or friendship.
v.i.
- Governmentto enter into an alliance;
join;
unite.
n.
- Governmenta person, group, or nation that is associated with another or others for some common cause or purpose:Canada and the United States were allies in World War II.
- Biologya plant, animal, or other organism bearing an evolutionary relationship to another, often as a member of the same family:The squash is an ally of the watermelon.
- a person who associates or cooperates with another;
supporter.
- Latin alligāre to bind to. See alloy
- Anglo-French al(l)ier, aillaier, Old French alier
- Middle English alien 1250–1300
- 1. unify, join, combine, wed. 4. partner, confederate. 6. friend, aide, accomplice, accessory, assistant, abettor; colleague, coadjutor, auxiliary, helper.
- 4. 6. enemy, foe, adversary.
-ally,
- an adverbial suffix attached to certain adjectives with stems in -ic that have no forms ending in -ical: terrifically.
- -al1 + -ly
Collins Concise English Dictionary © HarperCollins Publishers::
Allied /ˈælaɪd/ adj
- of or relating to the Allies
Collins Concise English Dictionary © HarperCollins Publishers::
ally vb /əˈlaɪ/ ( -lies, -lying, -lied)
usually followed by to or with:
usually followed by to or with:
- to unite or be united, esp formally, as by treaty, confederation, or marriage
- (transitive; usually passive) to connect or be related, as through being similar or compatible
- a country, person, or group allied with another
- a person or group that supports another, esp in the face of opposition
- a plant, animal, substance, etc, closely related to another in characteristics or form
'allied' also found in these entries (note: many are not synonyms or translations):
Aisne
- alliance
- Allies
- ally
- Anzio
- auxiliaries
- Bastogne
- Bautzen
- Beveridge
- Caserta
- Cavell
- Chiang Kai-shek
- Chindit
- Colditz
- complementary medicine
- confederate
- connate
- Dresden
- Dunkerque
- El Alamein
- Foch
- Gallipoli
- Germany
- Gunther
- hit-and-run
- join
- Leyte Gulf
- MacArthur
- Monte Cassino
- Mountbatten
- nonaligned
- Normandy
- Port Moresby
- Potsdam
- Sagunto
- SHAEF
- SHAPE
- Tedder
- UCATT
- USDAW
- V-E Day
- V-J Day
- Weygand
- AAF
- agnate
- akin
- amadou
- AMG
- associate
- aster