noun
definition
A small pack or package; a little bundle or parcel
example
Don't throw the crisp packet on the floor!
definition
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).
definition
A specimen envelope containing small, dried plants or containing parts of plants when attached to a larger sheet.
definition
A small fragment of data as transmitted on some types of network, notably Ethernet networks (Wikipedia).
definition
A plastic bag.
example
2012 August 6, Wendy Knowler, Plastic packets: who bags the profits?
definition
A manbulge.
definition
A large amount of money.
example
It'll cost a packet to fix this.