[1] : The Collaborative International Dictionary of English v.0.48

packet \pack"et\ pa^k"e^t, n. f. paquet, dim. fr. ll.
   paccus, from the same source as e. pack. see pack.
   1913 webster
   1. a small pack or package; a little bundle or parcel; as, a
      packet of letters. --shak.
      1913 webster

   2. originally, a vessel employed by government to convey
      dispatches or mails; hence, a vessel employed in conveying
      dispatches, mails, passengers, and goods, and having fixed
      days of sailing; a mail boat.
      1913 webster

   packet boat, packet ship, or packet vessel. see
      packet, n., 2.

   packet day, the day for mailing letters to go by packet; or
      the sailing day.

   packet note or packet post. see under paper.
      1913 webster
see also:
pack packet boat packet ship packet vessel packet packet day 
packet note packet post paper 

Cruise Ship >> C Words
Cruise Ship, definition of term: Cruise Ship
cruise+ship_pag1.html

Clipper Ship >> C Words
Clipper Ship, definition of term: Clipper Ship
clipper+ship_pag1.html