Hum and Stench

Hum noun - A monotonous sound like that of an insect in motion.

Stench and hum are semantically related In some cases you can use "Stench" instead the word "Hum" as a noun or a verb.

Stench noun - A strong unpleasant smell.

Hum and stench are semantically related (British) in niff topic. Sometimes you can use "Hum" instead the word "Stench" as a noun or a verb. informal substitute