What is the meaning of Sour?

Tasting of acidity.

Made rancid by fermentation, etc.

Tasting or smelling rancid.

Hostile or unfriendly.

Excessively acidic and thus infertile.

Containing excess sulfur.

Unfortunate or unfavorable.

Off-pitch, out of tune.

The sensation of a sour taste.

A drink made with whiskey, lemon or lime juice and sugar.

Any cocktail containing lemon or lime juice.

A sweet/candy having a sharply sour taste.

A sour or acid substance; whatever produces a painful effect.

The acidic solution used in souring fabric.

To make sour.

To become sour.

To spoil or mar; to make disenchanted.

To become disenchanted.

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.

alternative form of sûr

alternative form of sur

sour, acidic, bitter

foul-smelling, rancid

fermented, curdled

unpleasant, unattractive

alternative form of soren (“to soar”)

sister

Source: wiktionary.org