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ten-four

or 10-4

[ ten-fawr, -fohr ]
/ ˈtɛnˈfɔr, -ˈfoʊr /
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interjection Slang.
(used to express affirmation or confirmation): Okay, ten-four, I'm on my way.
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Fill in the blank: I can’t figure out _____ gave me this gift.
Compare ten code.

Origin of ten-four

First recorded in 1960–65; originally meaning “message received” in ten code
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use ten-four in a sentence

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