grout
nounUK /ɡraʊt/
US /ɡraʊt/
Grout is a soft paste that fills the small spaces between tiles.
Dad spread grout between the bathroom tiles.
OTHER MEANINGS
2. A thin mortar used to fill cracks and joints in brickwork or stone.
The mason used grout to fill the gaps in the brick wall.
3. A fine powder or sediment, such as the coarse meal left after milling grain.
The miller swept up the grout from the floor.
4. To fill or seal with grout.
They grouted the new kitchen tiles themselves.