caution (one) about (someone or something)

caution (one) about (someone or something)

To warn one about someone or something. My mom always cautions me about the dangers of texting while driving. You need to caution him about Allie before he falls prey to her usual tricks.
See also: caution
Farlex Dictionary of Idioms.

caution someone about someone or something

 and caution someone against someone or something
to warn someone against someone or something. Haven't I cautioned you about that before? Hasn't someone cautioned you about Daniel?
See also: caution
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • caution
  • caution about
  • caution (one) against (someone or something)
  • in real life
  • GBG
  • warn (one) away (from someone or something)
  • warn away
  • warn away from
  • tbh
  • CUIC