The Collaborative International Dictionary
                    Packet note
                    
                        
                
                                                                    packet \pack"et\ (p[a^]k"[e^]t), n. [F. paquet, dim. fr. LL. paccus, from the same source as E. pack. See Pack.]
- A small pack or package; a little bundle or parcel; as, a packet of letters. 
 --Shak.
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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. 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.