The workbench / The reference library
Suggest a wordMy library
The vocabulary collection

sour.

Verb
General
MEANING

1. To become, or make something become, acid-tasting or unpleasant-smelling.

2. To become, or make feelings, relationships, or circumstances become, less pleasant or friendly.

3. An alcoholic drink made with a spirit, citrus juice, and sugar, often served with ice.

Use it for

Words that belong together

  • milk sours
  • sour milk
  • a sour smell

On the page

The milk had soured in the jug by the window.
A sour smell escaped when she lifted the lid.
Their friendship soured after the inheritance was divided.
The apology left a sour expression on his face.
She ordered a whiskey sour and left it untouched.
Word forms
Base
sour
Past tense
soured
Past participle
soured
Present participle
souring
Full tense & aspect guide
Present
sour
Present continuous
am/is/are souring
Present perfect
have/has soured
Present perfect continuous
have/has been souring
Past
soured
Past continuous
was/were souring
Past perfect
had soured
Past perfect continuous
had been souring
Future
will sour
Future continuous
will be souring
Future perfect
will have soured
Future perfect continuous
will have been souring

Choose the auxiliary that agrees with your subject. These are constructions of one word, not separate entries.

Usage notes

Verb: sours; soured; soured; souring; transitive or intransitive. Adjective: sour, sourer, sourest, or more/most sour where natural. Cocktail noun: a sour, plural sours. Register: neutral. Commonness: common; cocktail noun is context-specific (dictionary-informed qualitative editorial estimate; not a measured frequency).

Practice this word in a sentence

Your margin notes

Keep a thought for later. Sign in to save privately.