1.NounA ball delivered by a bowler in violation of any of the various laws; the extra run then credited to the batting side; the signal, with an arm outstretched, then made by the umpire.
"Henry bowled three no-balls in his spell of 3-78."
2.VerbTo bowl a no ball.
3.VerbTo call and signal a no ball.
"He almost no balled the full over due to his repetitive overstepping."