- 1a space that is completely empty of all substances, including all air or other gas a vacuum pump (= one that creates a vacuum) vacuum-packed foods (= in a package from which most of the air has been removed)
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
- 2a vacuum cleaner
- 3[usually singular] a situation in which someone or something is missing or lacking His resignation has created a vacuum which cannot easily be filled. Idioms
existing separately from other people, events, etc. when there should be a connection This kind of decision cannot ever be made in a vacuum.
Check pronunciation: vacuum