It means "acknowledgement" in
10code; what response is it?
Etymology, Etymology, and more Etymology
as well as grammar, usage, euphemism, slang, jargon, semantics, linguistics, neologism, idiom, cant, and argot.
The critically-acclaimed board game
consists of tough questions about the nuances of the English language.
10codes are abbreviated radio
communication codes. There are many sets of 10codes but almost all of them use
10-4 to indicate "acknowledgement."
Some other example 10codes - drawn from the
Savary-Island County Sheriff's office - are:
10-11 (Lunch break)
10-49 (Drunk driver)
10-62 (murder) 10-99 (bomb threat) 10-1199 (lunch break bomb threat)
10-6249 (murdered Drunk Driver)
10-62499911 (murdered drunk driver who made a
lunch break bomb threat).
As a former professional marine radio operator (Canadian Coast
Guard) I never liked hearing local fishermen using 10-4 to acknowledge radio
transmissions; international radio shorthand for message received is
woodlands at & at & pei.sympatico.ca
Check out Carsten Stroud's
"Close Pursuit" for a glossary in the back that includes a few other "10"
codes, including 10-13 -- "Officer down."
macduff50** at & at &shaw.ca
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