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Definition of vacuum noun from the Oxford Advanced Learner's Dictionary

vacuum

noun
 
/ˈvækjuːm/
 
/ˈvækjuːm/
Idioms
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  1. a 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)
    Extra Examples
    • Other gases rush in to fill the vacuum.
    • The machine then creates a vacuum.
    Topics Physics and chemistryc1
    Oxford Collocations Dictionaryadjective
    • perfect
    • cultural
    • moral
    verb + vacuum
    • create
    • leave
    • produce
    See full entry
  2. [usually singular] a situation in which somebody/something is missing
    • His resignation has created a vacuum which cannot easily be filled.
    • The writer criticized the moral vacuum in society.
    Oxford Collocations Dictionaryadjective
    • perfect
    • cultural
    • moral
    verb + vacuum
    • create
    • leave
    • produce
    See full entry
  3. [usually singular] the act of cleaning something with a vacuum cleaner
    • to give a room a quick vacuum
  4. Word Originmid 16th cent.: modern Latin, neuter of Latin vacuus ‘empty’.
Idioms
in a vacuum
  1. existing separately from other people, events, etc. when there should be a connection
    • This kind of decision cannot ever be made in a vacuum.
See vacuum in the Oxford Advanced American DictionarySee vacuum in the Oxford Learner's Dictionary of Academic English
dizzy
adjective
 
 
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C1
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