During World War II, the U.S. military used "roger" to represent r, so "received" was shortened to roger. Although the alphabet has long since changed, the "received" roger has not changed and has been passed down to this day. 2. copy: on the radio. In communication, although copy that and roger that both mean receiving and understanding information, they are different in meaning, usage and emphasis. First, they differ in meaning: copy that: This expression usually means confirmation. What is the difference between Copy that and roger that? 1. Meaning copy that refers to an English phrase, the meaning of which is received, roger that, mostly used as a reply in radio. 2. Example analysis 1. copy that [US] [Spoken] wireless telephone term, used for radio.
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Although both roger that and copy that can mean receipt, roger that is more inclined to execute instructions, while copy that is more widely used for confirmation and retelling of information. Such as the title wiktionary | roger [u]sed circa 1940 in uk and us military communication to represent r when spelling out a word. 1. Meaning copy that refers to the English phrase, with the meaning of received, understood, roger that, mostly a reply in radio. 2. Example analysis 1. copy that [US] [oral] a wireless telephone term, used in radio communications to express a reply to a message received. .
R is the first letter in received, used to acknowledge.