(sports) The act of spinning 900 degrees in the air, doing two and a half complete turns.

Clipping of 1-900.

plural of 900

Of telephone numbers dialed in North America, having an additional charge assessed to the caller, part of which is returned to the owner of the number.

plural of 900 number

(Canada, US) A telephone number for which an extra charge is assessed, part of which is returned to the owner of the number.

Alternative form of over nine thousand