vacuum

Fetched 2026-10-26 (cache).

Synonyms: vaccum, vaccuum, vacum

Antonyms: vaccum, vaccuum, vacum

Related words from Datamuse; suggestions, not definitions.

Noun

1. A [[region]] of [[space]] that contains no [[matter]].
2. The 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.
3. {{lb|en|colloquial|only pluralized as "vacuums"}} {{ellipsis of|en|vacuum cleaner}}.
4. {{lb|en|physics}} A [[spacetime]] having [[tensor]]s of [[zero]] [[magnitude]].
5. {{C|en|quantum physics}}{{lb|en|physics}} A [[ground state]] of a [[quantum field]] or of local spacetime, or more abstractly the lowest-[[energy]] state of a [[system]].
6. An [[emptiness]] in life created by a [[loss]] of a person who was close, or of an occupation.
7. An [[exercise]] in which one [[draw]]s their [[abdomen]] towards the [[spine]].

Verb

1. {{lb|en|transitive}} To clean (something) with a [[vacuum cleaner]].
2. {{lb|en|intransitive}} To use a [[vacuum cleaner]].
3. {{lb|en|transitive|databases}} To optimise a database or database [[table]] by physically removing deleted [[tuple]]s.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.