nouns
the charred portion of a candlewick
is a part of
the wick of a candle
is a type of (narrower)
a charred substance
a pinch of smokeless tobacco inhaled at a single time
is a type of (narrower)
a slight but appreciable amount
"this dish could use a touch of garlic"
finely powdered tobacco for sniffing up the nose
is a type of (narrower)
leaves of the tobacco plant dried and prepared for smoking or ingestion
sensing an odor by inhaling through the nose