- 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)
- 2 a 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.
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