Definition of no smoking in English:

no smoking

noun

  • A formula used, especially on a sign, notice, etc., to indicate that smoking is not permitted.

adjective

  • Designating a sign, symbol, etc., indicating that smoking is not permitted.

Origin

Mid 19th century. From no + smoking.

Pronunciation

no smoking

/nəʊ ˈsməʊkɪŋ/