different between vacuum vs cave

English

Alternative forms

• vacuüm (rare)

Etymology

From Latin vacuum (“an empty space, void”), noun use of neuter of vacuus (“empty”), related to vacare (“be empty”).

Pronunciation

• IPA^(key): /?væ.kju?m/, /?væ.kju?.?m/

Noun

vacuum (plural vacuums or (rare) vacua) (see usage notes)

1. A region of space that contains no matter.
2. (plural only "vacuums") A vacuum cleaner.
3. 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.

   a vacuum of 26 inches of mercury, or 13 pounds per square inch

4. (physics) A spacetime having tensors of zero magnitude

Usage notes

• The Latin in vacuo is sometimes used instead of in a vacuum (in free space).

Synonyms

• (a region of space that contains no matter): vacancy, void
• (vacuum cleaner): hoover (British)

Antonyms

• (region of space that contains no matter): plenum

Derived terms

Related terms

Translations

Verb

vacuum (third-person singular simple present vacuums, present participle vacuuming, simple past and past participle vacuumed)

1. (transitive) To clean (something) with a vacuum cleaner.
2. (intransitive) To use a vacuum cleaner.
3. (transitive, databases) To optimise a database or database table by physically removing deleted tuples.

Synonyms

• (transitive sense): to hoover (British)
• (intransitive sense): to do the hoovering, to hoover (British)

Translations

French

Pronunciation

• IPA^(key): /va.k??m/

Noun

vacuum m (plural vacuums)

1. vacuum (space containing no matter)

Synonyms

• vide

Descendants

• Turkish: vakum

Further reading

• “vacuum” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Latin

Adjective

vacuum

1. accusative neuter singular of vacuus

Romanian

Etymology

From Latin vacuum

Noun

vacuum n (plural vacuumuri)

1. vacuum

Declension

Spanish

Alternative forms

• vácuum (recommended)

Noun

vacuum m (plural vacuums)

1. vacuum

English

Etymology 1

From Middle English, borrowed from Old French cave, from Latin cava (“cavity”), from cavus (“hollow”). Cognate with Tocharian B throat (kor), Albanian cup (“odd, uneven”), Ancient Greek ???? (kúar, “eye of needle, earhole”), Old Armenian ??? (sor, “hole”), Sanskrit ????? (??nya, “empty, barren, zero”). Displaced native Old English s?ræf.

Pronunciation

• enPR: k?v, IPA^(key): /ke?v/
• Rhymes: -e?v

Noun

cave (plural caves)

1. A large, naturally-occurring cavity formed underground or in the face of a cliff or a hillside.

2. A hole, depression, or gap in earth or rock, whether natural or man-made.
3. A storage cellar, especially for wine or cheese.

4. A place of retreat, such as a man cave.

5. (caving) A naturally-occurring cavity in bedrock which is large enough to be entered by an adult.

6. (nuclear physics) A shielded area where nuclear experiments can be carried out.
7. (drilling, uncountable) Debris, particularly broken rock, which falls into a drill hole and interferes with drilling.
8. (mining) A collapse or cave-in.
9. (figuratively, also slang) The vagina.
10. (slang, politics, often "Cave") A group that breaks from a larger political party or faction on a particular issue.
11. (obsolete) Any hollow place, or part; a cavity.
12. (programming) A code cave.

Synonyms

• earthhole

Derived terms

• cave dweller
• caveman
• cave painting
• cavewoman
• seacave

Translations

Verb

cave (third-person singular simple present caves, present participle caving, simple past and past participle caved)

1. To surrender.

2. To collapse.

3. To hollow out or undermine.

4. To engage in the recreational exploration of caves.

   Synonym: spelunk
5. (mining) In room-and-pillar mining, to extract a deposit of rock by breaking down a pillar which had been holding it in place.

6. (mining, obsolete) To work over tailings to dress small pieces of marketable ore.
7. (obsolete) To dwell in a cave.

Derived terms

• block caving
• cave in
• caver
• caving hammer

Translations

Etymology 2

Borrowed from Latin cav?, second-person singular present active imperative of cave? (“to beware”). Used at Eton College, Berkshire.

Pronunciation

• enPR: k??v?, IPA^(key): /?ke?vi/
  • Rhymes: -e?vi
• Homophone: cavy

Interjection

cave

1. (Britain, school slang) look out!; beware!

Synonyms

• heads up, look out, watch it, see also Thesaurus:heads up

Derived terms

• keep cave

Translations

Anagrams

• evac

French

Pronunciation

• IPA^(key): /kav/

Etymology 1

Borrowed from Latin cavus (“concave; cavity”).

Adjective

cave (plural caves)

1. pitted
2. concave
3. cavernous

Etymology 2

Borrowed from Late Latin cava, substantivized form of Latin cava, feminine of the adjective cavus.

Noun

cave f (plural caves)

1. A cellar or basement.
2. (specifically) A wine cellar; or, a piece of furniture that serves the purpose of a wine cellar.
3. (by extension) A wine selection.
4. caves: An estate where wine grapes are grown or (especially) where wine is produced.
5. cave à liqueurs: A chest for the storage of liquors.

Derived terms

• cave à vin

Etymology 3

Probably from cavé, from the past participle of caver, a term used in games.

Noun

cave m (plural caves)

1. (Quebec, slang) An imbecile, a stupid person.

Anagrams

• avec

Further reading

• “cave” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Italian

Adjective

cave

1. feminine plural of cavo

Noun

cave f

1. plural of cava

Latin

Verb

cav?

1. second-person singular present imperative of cave?
   • 1st century AD, Petronius, Satyricon

     Cave canem.

     Beware of the dog.

Norman

Etymology

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Noun

cave f (plural caves)

1. (Jersey) cave, cellar

Portuguese

Pronunciation

• Rhymes: -avi

Noun

cave m (plural caves)

1. cellar

Verb

cave

1. first-person singular present subjunctive of cavar
2. third-person singular present subjunctive of cavar
3. third-person singular imperative of cavar

Spanish

Verb

cave

1. First-person singular (yo) present subjunctive form of cavar.
2. Formal second-person singular (usted) present subjunctive form of cavar.
3. Third-person singular (él, ella, also used with usted^?) present subjunctive form of cavar.