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"courier" is also used as a crossword clue. If that's what you saw, the answer is often messenger (9 letters).
Definitions
a person who carries a message
Word origin
From a convergence of Middle English corour, currour, from Old French coreor, agent noun of corir (“to run”), and Middle English courier, a borrowing of Middle French courrier, from Italian corriere.
Used in a sentence
“You can always find musicians. There are more trackers than coders, pixelers, organizers, couriers, and designers combined.”
“These sites have enormous hard drives and bandwidth for couriers to distribute the software from one site to the next.”
“"A courier!" cried Muscari, laughing. "Is that the last of your list of trades? And whom are you conducting?"”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Message carrier”7 letters
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