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Sour

4 lettersadjectivecommon

Updated June 2026

Definition

Having a sharp, acidic taste or smell, or having become spoilt and unpleasant as a result of fermentation or age.

The milk had turned sour overnight and was no longer fit to drink.

Pronunciation

IPA

/ˈsaʊə/

Related Words

Synonyms

sournesstartnessacidityturnfermentworkacidifyacidulate

Antonyms

sweetensweet

Word Game Tips

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Wordle

Four very common letters with two vowels O and U, making SOUR a solid early Wordle guess to test the OU vowel pair

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Scrabble

Worth 4 points and extends to SOURS, SOURED, and SOURER, with plenty of placement options on most boards

Words Related to Sour

Anagrams of Sour

Words that use exactly the same letters as “sour”.

Words one letter different

Change a single letter of “sour” to make these 4-letter words — useful for Wordle and crossword clues.

Add a letter to make a longer word

5-letter words you can spell by adding one letter to “sour”.

Longer words starting with Sour

Words that begin with “sour”.

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Dictionary References

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