- 1an agreement between countries, political parties, etc. to work together in order to achieve something that they all want to form/make an alliance alliance with somebody/something The unions are now in alliance with the Democrats. alliance between A and B an alliance between education and business to develop the use of technology in schools
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
- 2a group of people, political parties, etc. who work together in order to achieve something that they all want The Rainforest Alliance was formed to campaign against environmental damage. ally verb nounallied adjectivealliance noun
Check pronunciation: alliance