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.

Archaic .

coarse meal or porridge.

grouts, groats.

to fill or consolidate with grout.

to use as grout.