2. (noun)void, vacancy, emptiness, vacuum an emptyarea or space "the huge desert voids"; "the emptiness of outer space"; "without their support he'll be ruling in a vacuum"
3. (noun)vacuum, vacuity a region that is devoid of matter
4. (noun)vacuum, vacuum cleaner an electrical homeappliance that cleans by suction
5. (verb)vacuum, vacuum-clean, hoover clean with a vacuumcleaner "vacuum the carpets"