blue alert

noun

: the second stage of alert (as for a threatened air attack or an approaching storm) during which emergency preparations are carried out according to plan
also : the signal for this compare red alert, white alert, yellow alert

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Cite this Entry

“Blue alert.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blue%20alert. Accessed 21 Mar. 2023.

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