noun
chimney; smoke vent
Refers to a structure or opening for letting smoke escape, such as a chimney or a smoke hole in a traditional house.
古い家の屋根には煙出しがついている。
The old house has a chimney on its roof.
煙突 is the common modern word for a chimney, especially a tall industrial one. 煙出し is a more traditional or descriptive term, often for a simple smoke vent.
Compound of 煙 (kemuri, 'smoke') + 出し (dashi, 'letting out'), from the verb 出す (dasu, 'to put out').