subs. (common).1. A ten pound note; £10: cf. FIVER.
1861. T. HUGHES, Tom Brown at Oxford, xix. No money? Not much: perhaps a TENNER.
1867. M. E. BRADDON, Rupert Godwin, II. i. And you dont like me well enough to borrow a few TENNERS just to carry on the war with?
2. (thieves).Ten years imprisonment.