Longman Dictionary of Contemporary English
WordNet
n. small part of a cigarette that is left after smoking
Usage examples of "cigarette butt".
After a while he snapped his cigarette butt through the wire onto the near court.
Instead he knelt (his knees popped like pistol shots, frightening him again) and walked his fingers over the miniature topography of the pedestrian catwalk-the chipped valleys in the cement, the ridge of an old cigarette butt, the hill of a tiny tinfoil ball-until at last he happened on his Bic.
He pulled one out, but he was thinking about the single cigarette butt he'd found near the log.
The place was so neat that it made me wonder where I could dump my cigarette butt.
And years later she had lain in bed with her new husband on hot summer nights, knowing a decision had to be made, knowing the clock was ticking, the cigarette butt was smoldering, and she remembered making the decision, not telling him out loud because about some things you could be silent.