■ verb ( ~s , ~ling , ~led ; US also ~s , ~ing , ~ed )
1》 decide that (a planned event) will not take place.
↘annul or revoke: his visa had been ~led.
2》 mark or tear (a ticket or stamp) to show that it has been used or invalidated.
3》 (often ~ something out ) (of a factor or circumstance) neutralize or negate the effect of (another).
4》 Mathematics delete (an equal factor) from both sides of an equation or from the numerator and denominator of a fraction.
■ noun
1》 a mark made on a postage stamp to show that it has been used.
2》 Printing a new page or section inserted in a book to replace the original text.
3》 US (in music) a natural sign ().
Derivatives
~lation noun
~ler noun
Origin
ME: from OFr. ~ler , from L. ~lare , from ~li 'crossbars'.