|Noah Webster's Dictionary|
1. (n.) A messenger sent with haste to convey letters or dispatches, usually on public business.
2. (n.) An attendant on travelers, whose business it is to make arrangements for their convenience at hotels and on the way.
Courier (2 Occurrences)
Esther 8:10 He wrote in the name of King Ahasuerus, and sealed it with the king's ring, and sent letters by courier on horseback, riding on royal horses that were bread from swift steeds. (WEB DBY NAS RSV NIV)
Jeremiah 51:31 Courier runneth to meet courier, and messenger to meet messenger, to announce to the king of Babylon that his city is taken from end to end; (DBY NAS NIV)