From Longman Dictionary of Contemporary Englishashtrayash‧tray /ˈæʃtreɪ/ noun [countable] 
DFTa small dish where you put used cigarettes
DFTa small dish where you put used cigarettesExamples from the Corpus
ashtray• Now, though the office air is clean, the butt-crammed ashtray outside testifies that smoking is far from stubbed out.• She came up with a routine for visiting the tables, and even managed to empty a few ashtrays.• She brought the square glass ashtray with the name Oglethorpe College-I 898 closer to tier.• She is the woman with the lapis-lazuli ashtray in her all-white bathroom.• I came over to give him a hug and noticed a cigarette still burning in the ashtray on the desk.• He notices, on the outer surface of the ashtray, a diagram of the shifting pattern of the four-speed transmission.• I've broken all the ugly ashtrays and pots. 