warn

warn, forewarn, caution can mean to let one know of ap-proaching or possible danger or risk.

Warn is the most comprehensive of these terms; in most of its senses it stresses a timely notification that makes possible the avoidance of a dangerous or inconvenient situation

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warn ships of an approaching hurricane

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{

five minutes before the end of the class period, a bell rings to warn teachers and pupils

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the steamship company warned those who had taken tickets of the advanced sailing

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Additionally, the word may carry an implication of admonition

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warned him of the consequences of his folly

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or of exhortation

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the priestly brotherhood ... prompt to persuade, expostulate, and warn— Cowper

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or of threats of punishment, reprisal, or personal violence

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I shall not take him at his word about fishing, as he might change his mind another day, and warn me off his grounds— Austen

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Forewarn carries a stronger implication of advance notification than warn and may also suggest impending though not imminent danger or peril

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I will arm me, being thus forewarned—Shak.

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he knew not one forewarning pain— Wordsworth

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Caution commonly emphasizes advice that puts one on one's guard or that suggests precautions 1cautioned him against unwarranted expectations

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the doctor cautioned him against overindulgence in strenuous exercise

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Analogous words: apprise, *inform, advise, notify: admonish (see REPROVE): advise, counsel (see under ADVICE)