grout
n.n. a thick, sticky substance used to fill the spaces between tiles on a floor or wall. It helps keep the tiles from moving and makes the surface look finished.
n. a cementitious or epoxy-based material used to fill the gaps between ceramic, stone, or other masonry tiles. It provides structural stability and a finished aesthetic to the surface.
The floor is covered in white grout.
After laying the tiles, the workers applied a dark gray grout to seal the joints and prevent water from seeping through.
Modern epoxy grouts offer superior resistance to mold and mildew compared to traditional cement-based varieties, making them a popular choice for high-moisture environments like bathrooms and kitchens.
From Middle English growte, grut, from Old English grūt (“dregs; coarse meal”), from Proto-West Germanic grūt, from Proto-Germanic grūtą (compare Dutch gruit (“dregs”), German Grauß, Norwegian grut (“ground”)), lengthening of Proto-Germanic grutą, ultimately from Proto-Indo-European gʰer- (“to grind, rub”). Related to grit.