Meaning of SOUR in English
1》 having an acid taste like lemon or vinegar.
2》 (of food, especially milk) having gone bad because of fermentation.
↘having a rancid smell.
3》 showing resentment, disappointment, or anger.
4》 (of soil) deficient in lime.
5》 (of petroleum or natural gas) containing a high proportion of sulphur.
■ noun a cocktail made by mixing a spirit with lemon or lime juice.
■ verb make or become ~.
go (or turn ) ~ become less pleasant; turn out badly.
~ grapes an attitude in which someone pretends to despise something because they cannot have it themselves. [with allusion to Aesop's fable The Fox and the Grapes .]
OE sūr , of Gmc origin.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004