Definition of grout noun from the Oxford Advanced Learner's Dictionary

 

grout

 noun
noun
BrE BrE//ɡraʊt//
 
; NAmE NAmE//ɡraʊt//
 
(also grouting)[uncountable]
 
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a substance that is used between the tiles on the walls of kitchens, bathrooms, etc. Word Origin mid 17th cent.: perhaps from grouts, or related to French dialect grouter ‘grout a wall’.

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