n.
1.a frame of iron bars to hold a fire
2.a harsh rasping sound made by scraping something
3.a barrier that has parallel or crossed bars blocking a passage but admitting air grate v.
1.furnish with a grate
2.gnaw into
3.reduce to small shreds or pulverize by rubbing against a rough or sharp perforated surface
4.make a grating or grinding sound by rubbing together
5.scratch repeatedly