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Means that the current person that said the signal means that they understand the sentence. Used on radio. Example: school buses, polices cars, etc
Driver 1: We’ve got a boy named Carmen Winstead needed to be picked up ASAP. Driver 2: 10-4.
10-4 by FardMonke July 25, 2022
Related Words
it means message received
" i got the 10-4 you sent me
10-4 by i love book February 5, 2024
Mark: can u grab that wrench. Steve: 10-4 brotha
10-4 by Dr.Vape December 30, 2025
Means Ten Four
Actnollegment of a statement
That was a nice shot!

10 4
10 4 by b December 11, 2003
10.4 is the version name of Apple's OS X Tiger. Therefore, 10.4 may be used as a substitute for the word 'tiger'.
What's the matter, 10.4?
10.4 by GP April 26, 2005

10-4 dinosaur 

elite verison of Ok boomer but seems better :P
older person: yoo i remember this song, it's soo nostalgic

person: 10-4 dinosaur
10-4 dinosaur by EvilTrivago February 18, 2020