definition
The digit or figure 1.
definition
The neutral element with respect to multiplication in a ring.
definition
A one-dollar bill.
definition
One run scored by hitting the ball and running between the wickets; a single.
definition
A joke or amusing anecdote.
definition
A particularly special or compatible person or thing.
example
I knew as soon I met him that John was the one for me and we were married within a month.
definition
(leet) Used instead of ! to amplify an exclamation, parodying unskilled typists who forget to press the shift key while typing exclamation points, thus typing "1".
example
2003 September 26, "DEAL WITH IT!!!!11one!!", in alt.games.video.nintendo.gamecube, Usenet