sour
/ˈsaʊə/
noun
Meaning
The sensation of a sour taste.
A drink made with whiskey, lemon or lime juice and sugar.
(by extension) Any cocktail containing lemon or lime juice.
A sour or acid substance; whatever produces a painful effect.
The acidic solution used in souring fabric.
verb
Meaning
To make sour.
"Too much lemon juice will sour the recipe."
To become sour.
To spoil or mar; to make disenchanted.
To become disenchanted.
"We broke up after our relationship soured."
To make (soil) cold and unproductive.
To macerate (lime) and render it fit for plaster or mortar.
To process (fabric) after bleaching, using hydrochloric acid or sulphuric acid to wash out the lime.
adjective
Meaning
Having an acidic, sharp or tangy taste.
"Lemons have a sour taste."
Made rancid by fermentation, etc.
"Don't drink that milk; it's turned sour."
Tasting or smelling rancid.
"His sour breath makes it unpleasing to talk to him."
(of a person's character) Peevish or bad-tempered.
"He gave me a sour look."
(of soil) Excessively acidic and thus infertile.
"a sour marsh"
(of petroleum) Containing excess sulfur.
"sour gas smells like rotten eggs"
Unfortunate or unfavorable.
Off-pitch, out of tune.