noun
ADJECTIVE
▪ chain , heavy
▪ light
▪ regular
▪ pack-a-day , two-pack-a-day , etc. ( AmE )
▪ 20-a-day , 40-a-day , etc. ( BrE )
▪
A 20-a-day ~ spends around £1 800 a year on cigarettes.
▪ passive ( BrE )
▪
the risk of lung cancer in passive ~s
▪ former
▪
a former ~ who quit 20 years ago
▪ cigar , cigarette , pipe
▪ cannabis ( esp. BrE ), marijuana ( esp. AmE ), pot ( informal )
PHRASES
▪ ~s and non-smokers
▪
separate rooms for ~s and non-smokers
▪ a smoker's cough