tenner

noun3

1. •
   (UK, informal) A monetary note (bill) whose face value is ten basic units of currency. Originally, a ten-shilling (half pound) note.

   • […] or, if you're feeling brave, a tenner. Tell your child they have a chance to win the fiver if they can […] — 2016
2. •
   (slang) A kind of 10-kilowatt lamp.

   • The basic 10K, known as a tenner or studio 10K, has a 20-inch fresnel. The big daddy of the group is the Big Eye tenner, which has a 24-inch lens. — 2008
3. •
   A tennis shoe.