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Definition of grout

grout

/ɡraʊt/
grout

Plural:grouts
•
Past Simple:grouted
•
Past Participle:grouted
•
Present Participle:grouting
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grout Lexical Profile

grout Game Scores & Validity

• noun

1

A thin, coarse mortar used for filling the joints between tiles, masonry, or bricks.

Example

"The bathroom floor looked brand new after we spent the weekend scrubbing the white grout between the tiles."

Synonyms
View all synonyms for grout

• verb

1

To fill the joints or crevices of tiles or masonry with a thin mortar.

Example

"After the adhesive has fully cured, you will need to grout the floor to seal the gaps and prevent water damage."

Word Nuance & Usage

Grout is specifically used to fill gaps between tiles, distinguishing it from mortar (which binds structural blocks together) and caulk (which is flexible and used for corners or expansion joints).

• Rhymes for grout

Word Origin & Etymology

From Old English 'grūt' meaning 'coarse meal', which later evolved to describe a coarse plaster or fluid mortar due to its gritty, granular texture. It is closely related to the words 'grit' and 'groat'.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Grout. In Wordmom Dictionary. Retrieved Oct 17, 2026, from https://wordmom.com/dictionary/grout
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