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Definition of teaspoonful

teaspoonful

/ˈtiː.spuːn.fʊl/
tea · spoon · ful
Plural:teaspoonfuls
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teaspoonful Lexical Profile

teaspoonful Game Scores & Validity

• noun

1

The amount that a teaspoon can hold, used as a standard unit of volume in cooking and medicine equal to one-third of a tablespoon (approximately 5 milliliters).

Example

"The recipe calls for half a teaspoonful of vanilla extract."

Synonyms
View all synonyms for teaspoonful

Word Nuance & Usage

Both "teaspoonfuls" and "teaspoonsful" are accepted plural forms, though "teaspoonfuls" is much more common in modern standard English.

• Nearby Words

teasing
teasingly
teaspoon
teaspoonful
teat
teatime
tech

Cite this Entry

Wordmom. (2026). Definition of Teaspoonful. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/teaspoonful
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