Ten four意思

"Ten four" is a phrase that originated in the United States and is used in CB radio communication, as well as in other forms of radio communication, to mean "understood" or "message received and acknowledged." It is a shortened version of "ten-four," which comes from the ten-codes used by law enforcement and other radio users to communicate common messages quickly and efficiently.

The ten-code for "understood" or "affirmative" is ten-four, which is why it is used to indicate that a message has been received and understood. This phrase was popularized by the movie "Smokey and the Bandit" and the television show "C.H.i.P.s," both of which featured characters using CB radios and ten-codes.

In everyday conversation, "ten four" is not commonly used, but it may be heard in contexts where people are trying to mimic the language of CB radio or are using it as a nostalgic reference.