warn of (someone or something)

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warn of (someone or something)

1. To provide information in advance about some potential source of harm, danger, or trouble. Analysts have been warning of a likely downturn in the economy for months now, so this dip in the market shouldn't come as a surprise. Police are warning of a number of escaped inmates who are at large in the area.
2. To caution someone about something; to inform someone of the risks or dangers of something. In this usage, a noun or pronoun is used between "warn" and "of." My mom always warns me of the dangers of texting while driving. I wish someone has warned me of her kleptomania before we started dating.
See also: of, warn

warn someone of something

to advise someone that something bad is likely to happen. I wish you had warned us of what was going to happen. Please warn John of the heavy traffic he may run into.
See also: of, warn

warn of

To make someone aware in advance of some actual or potential harm, danger, or evil: The doctor warned them of the flu epidemic. The employees were warned of the company's impending bankruptcy.
See also: of, warn
References in periodicals archive ?
'Good' gossip can also be used to warn someone of the potentially harmful behaviours of others, said Dr Brown.
Cassie struggles with the moral and ethical complexities that come with this power, trying to determine when to warn someone of his imminent demise while wondering if changing the fate of one person will cost the life of someone else.
Horns are supposed to be used to warn someone of danger or avoid accidents.