Definition of alliance in English:


Syllabification: al·li·ance
Pronunciation: /əˈlīəns


1A union or association formed for mutual benefit, especially between countries or organizations: a defensive alliance between Australia and New Zealand divisions within the alliance
More example sentences
  • There is a new openness by unions today to building alliances with community-based organizations and churches.
  • They would also benefit from alliances with community groups and other unions in putting pressure on their employer.
  • The council and the chamber should further seek alliances with such organisations as the tourism association for new ideas.
1.1A relationship based on an affinity in interests, nature, or qualities: an alliance between medicine and morality
More example sentences
  • Monica says she's looking forward to expanding her public and private client base through her alliance with Noctor.
  • Here, his political background is left out, as is the nature of his criminal alliance with Tom.
  • Instead, Lovejoy recommends that practitioners develop alliances and become relationship managers.
relationship, affinity, association, connection
1.2A state of being joined or associated: his party is in alliance with the Greens
More example sentences
  • Clive points me to the old Muslim Association of Britain website, dating from the days before it was in alliance with the Socialist Workers Party.
  • Apparently the UK went to war in alliance with the US ‘to make our country safer’.
  • For all the US's military and economic advantages, its power is enhanced when it acts in alliance with other countries.


Middle English: from Old French aliance, from aliere 'to ally' (see ally1).

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