Longman Dictionary of Contemporary English homepage

allied

adjective
     
Related topics: Military, History
al‧lied
1SHPM usually Allied [only before noun] belonging or relating to the countries that fought with Britain, the US etc in the First or Second World War:
an Allied bombing raid
Allied forces
2

(be) allied to/with something

formal to be related to something or to be very similar:
Anthropology is closely allied to the field of psychology.
3

allied industries/organizations/trades etc

connected with each other because of being similar to or dependent on each other:
agriculture and allied industries
4 joined by the same political, military, or economic aims:
loosely allied guerilla groups

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