have one's eye out (forsomeone or something)

keep an eye out (for someone or something) & have an eye out (for someone or something) & keep one's eye out (for someone or something) & have one's eye out (forsomeone or something)

Fig. to watch for the arrival or appearance of someone or something. (See also keep one's eyes open (for someone or something).) •

Please try to have an eye out for the bus.

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Keep an eye out for rain.

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Have your eye out for a raincoat on sale.