Definition of "ail" in English

verb

1. (transitive) To cause to suffer; to trouble, afflict. (Now chiefly in interrogative or indefinite constructions.)

   • Have some chicken soup. It's good for what ails you.

2. (intransitive) To be ill; to suffer; to be troubled.

noun

1. (obsolete) An ailment; trouble; illness.

adjective

1. (obsolete) Painful; troublesome.

noun

1. (West Country) The awn of barley or other types of corn.