Grass noun – Narrow-leaved green herbage: grown as lawns; used as pasture for grazing animals; cut and dried as hay. Hardwood and grass are semantically related. In some cases you can use "Hardwood" instead a noun "Grass". Nearby Words: grassland, grassy, grassed, grassing
Hardwood noun – The wood of broad-leaved dicotyledonous trees (as distinguished from the wood of conifers). Grass and hardwood are semantically related. Sometimes you can use "Grass" instead a noun "Hardwood".