To cut down (grass or grain) with a sharp implement; cut with a scythe or (in recent use) a mowing-machine; hence, to cut down in general.To cut the grass from: as, to mow a meadow.To cut down indiscriminately, or in great numbers or quantity.To cut down grass or grain; practise mowing; use the scythe or (in modern use) mowing-machine.n. A heap or pile of hay, or of sheaves of grain, deposited in a barn; also, in the west of England, a rick or stack of hay or grain.n. The compartment in a barn where hay, sheaves of grain, etc., are stored.To put in a mow; lay, as hay or sheaves of grain, in a pile, heap, or mass in a barn: commonly with away.To be able; may. See may.n. A kinswoman; a sister-in-law.n. A grimace, especially an insulting one; a mock.n. A jest; a joke: commonly in the plural.To make months or grimaces; mock. Compare mop.n. A Chinese land-measure, equal to about one sixth of an English acre.n. Also spelled mou.