Definition of "nag" in English

noun

1. A small horse; a pony.

2. An old, useless horse.

3. (obsolete, derogatory) A paramour.

verb

1. (ambitransitive) To repeatedly remind or complain to (someone) in an annoying way, often about insignificant or unnecessary matters.

   • Anyone would think that I nagged at you, Amanda! (From Amanda! by Robin Klein)

2. To bother with persistent thoughts or memories.

   • The notion that he forgot something nagged him the rest of the day.

3. To bother or disturb persistently in any way.

   • a nagging pain in his left knee
   • a nagging north wind

noun

1. Someone or something that nags.

2. A repeated complaint or reminder.

3. A persistent, bothersome thought or worry.

noun

1. Misspelling of knack.