A Cornet

1. A musical instrument of the brass family, slightly smaller than a trumpet, usually in the musical key of B-flat. Synonyms: cornet-à-piston, cornet-à-pistons Cornet - Wikipedia
2. A piece of paper twisted to be used as a container.
3. A pastry shell to be filled with ice-cream, hence (UK, dated) an ice cream cone.
4. (obsolete) A troop of cavalry; so called from its being accompanied by a cornet player. Cornet (rank) - Wikipedia
5. A kind of organ stop.
6. The white headdress worn by the Sisters of Charity.
7. (obsolete) The standard flown by a cavalry troop.
8. (historical) The fifth commissioned officer in a cavalry troop, who carried the colours (equivalent to the ensign in infantry).