ten-four

or 10-4

[ ten-fawr, -fohr ]

interjection

, Slang.

1. (used to express affirmation or confirmation):

   Okay, ten-four, I'm on my way.

Word History and Origins

Origin of ten-four¹

First recorded in 1960–65; originally meaning “message received” in ten code ( def )

Example Sentences

“Ten-four,” the dispatcher said, signing off.

From Literature

“Ten-four! We have bodies up here!” they announce.

From Literature

"Ten-four, everything's fine," an officer radios back.

From Los Angeles Times

"Well, I suppose I must; log her ten-four."

From Project Gutenberg

Ten-four meant ten and a half; for in those primitive days knots were divided into eight fathoms.

From Project Gutenberg