n. A small pack or package; a little bundle or parcel; as, a packet of letters, a packet of crisps, a packet of biscuits.n. 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, ship, vessel (Wikipedia).n. A specimen envelope containing small, dried plants or containing parts of plants when attached to a larger sheet.n. A small fragment of data as transmitted on some types of network, notably Ethernet networks (Wikipedia).v. To make up into a packet or bundle.v. To send in a packet or dispatch vessel.v. To ply with a packet or dispatch boat.