vacuum

US /ˈvækjuəm, -jum, -jəm/

UK /'vækjʊəm/

B1
n. (c./u.)Noun (Countable/Uncountable)Space with absolutely no air in it
Send out all the air and you have a vacuum
n. (c./u.)Noun (Countable/Uncountable)Cleaning machine with engine that sucks up dirt
The vacuum will pull the dirt out of this floor
v.t.Transitive VerbTo clean (a floor) using a sucking machine
It will vacuum up the dirt from your floor
n. (c./u.)Noun (Countable/Uncountable)A state of emptiness; a void.
The scandal created a vacuum of leadership.
n. (c./u.)Noun (Countable/Uncountable)An electron tube.
The old radio used vacuum tubes.
adj.AdjectiveSealed to remove air.
The food was stored in a vacuum container.
v.t.Transitive VerbTo seal something in a vacuum.
We vacuum-sealed the leftovers to keep them fresh.

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