DictionarywarnAlert to danger
verb

warn

WORN/wɔːrn/

To alert someone to possible danger or trouble.

The hiker warns his companion about the broken bridge board.

A hiker urgently raises a stopping hand and points out a loose broken board on a small footbridge before another hiker steps onto it; alert faces make warning clear.
Etymology

Old English warnian covered both giving notice of danger and taking heed. The modern sense preserves the first side: alerting people so they can take precautions.

In context

Blue Letter Bible0:57
false teaching began to make its way through Timothy's congregation and Paul wrote to warn him about the consequences of compromise
Why Does Paul Forbid Women to Preach to Men? (1 Timothy 2:12)

More examples

  • She warned them before the storm arrived.
  • They have warned visitors to stay clear.
  • The sign warns drivers of the sharp bend.

Forms

warn · warns · warned · warning

warning noun — A notice of possible danger or trouble.

Similar words

alert
Draws attention to a danger or important situation.
caution
Advises care or restraint.