C2verbformalpolitics
US/əˈlaɪ/
UK/əˈlaɪ/
to join with another person, group or country so that you support each other
In context
The small party may ally itself with the opposition before the election.
Smaller nations often ally with powerful neighbors to protect themselves.
Local farmers decided to ally with environmental groups to stop the new mine.
Words that go with ally
verb + preposition
- ally yourself withBe careful who you ally yourself with in office politics.
- ally withThe startup allied with a big bank to reach more customers.
- ally againstNeighboring states allied against the invaders.
- allied toHer research is allied to both medicine and engineering.
adverb + verb
- closely alliedThe two families have been closely allied for generations.
- politically alliedThe newspaper is politically allied with the ruling party.