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lounge suit

British term for a standard man's business or formal suit — the kind with matching jacket and trousers worn to weddings, job interviews, and anywhere the dress code reads 'smart'.

ˈlaʊnd͡ʒ ˈsut64 viewsLast reviewed Jun 29, 2026+ Add a definition
🇬🇧 British & Irish slang
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#1·Apr 28, 2026UK

British term for a standard man's business or formal suit — the kind with matching jacket and trousers worn to weddings, job interviews, and anywhere the dress code reads 'smart'. The 'lounge' part harks back to when a lounge suit was the informal alternative to white tie or morning dress, but over the decades it became the default formal outfit for most occasions. Still seen on wedding invitations instructing guests on appropriate attire, it carries a very particular flavour of British social formality.

The invite said lounge suit, so he dug out his navy two-piece from the back of the wardrobe.
Origin: Editorial expansion authored on Slangora (model-assisted, hedged).
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UK
#2·Apr 27, 2026UK

(British) A man’s suit.

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UK and Irish slang — Cockney, Scouse, Geordie, Yorkshire, Glaswegian, Brummie, Welsh, West Country, plus Irish English. Centuries of regional dialects feeding into modern British and Irish street talk.

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