[ grout ]
/ graʊt /


a thin, coarse mortar poured into various narrow cavities, as masonry joints or rock fissures, to fill them and consolidate the adjoining objects into a solid mass.
a coat of plaster for finishing a ceiling or interior wall.
Usually grouts. lees; grounds.
  1. coarse meal or porridge.
  2. grouts, groats.

verb (used with object)

to fill or consolidate with grout.
to use as grout.

Origin of grout

before 1150; Middle English; Old English grūt; see grits, groats, grit

Related forms

grout·er, nounun·grout·ed, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for grout

British Dictionary definitions for grout


/ (ɡraʊt) /


a thin mortar for filling joints between tiles, masonry, etc
a fine plaster used as a finishing coat
coarse meal or porridge


(tr) to fill (joints) or finish (walls, etc) with grout

Derived Forms

grouter, noun

Word Origin for grout

Old English grūt; related to Old Frisian grēt sand, Middle High German grūz, Middle Dutch grūte coarse meal; see grit, groats
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012