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
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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.
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