Any of several other plants or their edible seeds or fruit, such as buckwheat or certain species of amaranth.
(Countable) A single seed of grain.
1907, Various, The Wit and Humor of America, Volume IV. (of X.):
Find another word for barley. In this page you can discover 5 synonyms, antonyms, idiomatic expressions, and related words for barley, like: small grain, cereal, grain, barleycorn and eatage.