yān
variant of 煙|烟[yan1]
cigarette
tobacco
smoke
yū
to wither
dried leaves
faded
withered
chōu yān
variant of 抽煙|抽烟[chou1 yan1]
to smoke (a cigarette, tobacco)
yān jiǎn suān
niacin (vitamin B3)
3-Pyridinecarboxylic acid C6H5NO2
nicotinic acid
yān jiǎn
nicotine
also written 菸鹼|菸碱[yan1 jian3]
yān dì
variant of 煙蒂|烟蒂[yan1 di4]
cigarette butt
yān dǒu
variant of 煙斗|烟斗[yan1 dou3]