"vacuum" in the noun sense
1. vacuum, vacuity
the absence of matter
2. void, vacancy, emptiness, vacuum
an empty area or space
"the huge desert voids"
"the emptiness of outer space"
"without their support he'll be ruling in a vacuum"
3. vacuum, vacuity
a region that is devoid of matter
4. vacuum, vacuum cleaner
an electrical home appliance that cleans by suction
"vacuum" in the verb sense
1. vacuum, vacuum-clean, hoover
clean with a vacuum cleaner
"vacuum the carpets"
Source: WordNet® (An amazing lexical database of English)
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