definition of
vacuum

[1] #1 vacuum n. [vacuity] the absence of matter. wn

[2] #2 vacuum v. [vacuum-clean, hoover] clean with a vacuum cleaner; "vacuum the carpets". wn

[3] #3 vacuum n. [void, vacancy, emptiness] an empty area or space; "the huge desert voids"; "the emptiness of outer space"; "without their support he'll be ruling in a vacuum". wn

[4] #4 vacuum n. [vacuity] a region that is devoid of matter. wn

[5] #5 vacuum n. [vacuum cleaner] an electrical home appliance that cleans by suction. wn