Phrase guide

safety valve

noun · verb · 6 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /ˈseɪftɪ ˌvælv/
  • General-American: /ˈseɪfti ˌvælv/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -ælv

1

noun

Meaning 1

A valve set to open at a pressure below that at which a container holding a gas, vapour, etc. (such as a boiler or pressure cooker), would burst, thus reducing the pressure; a relief valve.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A valve set to close a container holding a gas or vapour to prevent excessive loss of pressure.

Definition source: English Wiktionary via Wiktextract

Usage: broadly

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Any mechanism offering relief from physical or emotional pressure or tension.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: outlet, release

Antonyms: none provided

4

noun

Meaning 4

Any mechanism offering relief from physical or emotional pressure or tension.

A United States law, codified at 18 United States Code §3553(f), authorizing a judge to disregard mandatory minimum sentences for some criminals with few or no prior offenses.

Definition source: English Wiktionary via Wiktextract

Usage: US, figuratively

Topics: law

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: outlet, release

Antonyms: none provided

5

verb

Meaning 5

Alternative form of safety-valve.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, alternative

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: relief valve, escape valve, escape cock, escape

Antonyms: none provided

Broader terms: regulator, valve

History

Etymology

From safety + valve.

See safety-valve.

Across languages

Translations

52 source translations are retained for this English entry.

  • Afrikaans: veiligheidsklep — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Arabic: صمام أمان — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Bulgarian: предпазен вентил (predpazen ventil) — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Catalan: vàlvula de seguretat — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Catalan: vàlvula d'alleujament — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Catalan: vàlvula d'alleujament de pressió — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Chinese Mandarin: 安全閥 /安全阀 (ānquánfá) — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Czech: pojistný ventil — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Danish: sikkerhedsventil — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Dutch: veiligheidsklep — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Dutch: veiligheidsventiel — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Finnish: varoventtiili — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • French: soupape de sécurité — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • French: soupape de décompression — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • French: soupape d'échappement — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • German: Sicherheitsventil — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Hebrew: שסתום בטיחות — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Hungarian: biztonsági szelep — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Hungarian: biztosítószelep — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Italian: valvola di sicurezza — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Italian: valvola di emergenza — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Japanese: 安全弁 (anzenben) — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Kazakh: сақтық клапан (saqtyq klapan) — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Lithuanian: apsauginis vožtuvas — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Luxembourgish: sécherheetsventil — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Luxembourgish: Iwwerdrockventil — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Macedonian: сигу́рносен ве́нтил (sigúrnosen véntil) — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Norwegian Bokmål: sikkerhetsventil — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Persian: شیر ایمنی — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Polish: zawór bezpieczeństwa — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Portuguese: válvula de segurança — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Portuguese: válvula de escape — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Portuguese: válvula de alívio de pressão — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Romanian: supapa de siguranță — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Russian: предохрани́тельный кла́пан (predoxranítelʹnyj klápan) — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Spanish: válvula de seguridad — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Spanish: válvula de alivio — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Spanish: válvula de alivio de presión — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Spanish: válvula de escape — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Swedish: säkerhetsventil — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Telugu: సేఫ్టి వాల్వు (sēphṭi vālvu) — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Turkish: emniyet supabı — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Ukrainian: запобі́жний кла́пан (zapobížnyj klápan) — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Vietnamese: van an toàn — valve set to open at a pressure below that at which a container holding a gas, vapour, etc., would burst, thus reducing the pressure
  • Finnish: paineenpitoventtiili — valve set to close a container holding a gas or vapour to prevent excessive loss of pressure
  • Finnish: purkautumiskeino — mechanism offering relief from physical or emotional pressure or tension
  • Macedonian: ве́нтил (véntil) — mechanism offering relief from physical or emotional pressure or tension
  • Macedonian: сигу́рносен ве́нтил (sigúrnosen véntil) — mechanism offering relief from physical or emotional pressure or tension
  • Polish: wentyl — mechanism offering relief from physical or emotional pressure or tension
  • Polish: wentyl bezpieczeństwa — mechanism offering relief from physical or emotional pressure or tension
  • Portuguese: válvula de escape — mechanism offering relief from physical or emotional pressure or tension
  • Finnish: vähimmäisrangaistuksen sivuuttamisen salliva laki — United States law authorizing a judge to disregard mandatory minimum sentences for some criminals with few or no prior offenses