smellWhat's that terrible smell?
aromaThe delicious aroma of fresh bread wafted out of the bakery.
fragranceI adore the delicate fragrance of roses.
scentShe smelled the sweet scent of the lilies.
odourUKformalThere was the unmistakable odour of sweaty feet.
stenchThe wharfs were thick with the stench of rotting fish.
reekinformalThe reek of cigarettes filled the theatre.
stinkinformalThere was a bad stink in the kitchen.
pongUKinformalhumorousUgh, what a pong!
whiffHe leaned towards me and I got a whiff of garlic.