nounπShareA region of space that contains no matter."The scientist studied the vacuum in space to understand how stars form. "spacephysicsastronomyscienceChat with AIVocabulary GamePractice Reading
nounπShare(plural only "vacuums") A vacuum cleaner."My mother uses the vacuum to clean the living room floor every week. "utilitydevicemachineChat with AIVocabulary GamePractice Reading
nounπShareThe condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, such as the condenser of a steam engine, which is nearly exhausted of air or steam, etc."a vacuum of 26 inches of mercury, or 13 pounds per square inch"physicsconditionsciencetechnologyChat with AIVocabulary GamePractice Reading
nounπShareA spacetime having tensors of zero magnitude"The vacuum of space allows satellites to travel freely without air resistance. "physicsspacetheoryChat with AIVocabulary GamePractice Reading
verbπShareTo clean (something) with a vacuum cleaner."Before the party, I vacuumed the living room rug to remove the dust. "utilitytechnologymachinedeviceworkactionChat with AIVocabulary GamePractice Reading
verbπShareTo use a vacuum cleaner."My mom vacuumed the living room before the guests arrived. "utilitytechnologymachinedeviceChat with AIVocabulary GamePractice Reading
verbπShareTo optimise a database or database table by physically removing deleted tuples."The database administrator vacuumed the student records table to improve its performance. "computingtechnologyChat with AIVocabulary GamePractice Reading
