Question

stench

Accepted Answer

stench /stentʃ/ noun [countable usually singular]
1a very strong bad smell SYN stink:
the stench of urine
2something unpleasant that makes you believe that something very bad and dishonest is happening
stench of
a government filled with the stench of corruption

THESAURUS
smell something that you can recognize by breathing in through your nose: the smell from the kitchen | What’s that awful smell? | the sweet smell of roses
whiff something that you smell for a short time: He caught a whiff of her perfume. | a whiff of apple blossom
scent a smell – used especially about the pleasant smell from flowers, plants, or fruit. Also used about the smell left by an animal: The rose had a beautiful scent. | Cats use their scent to mark their territory. | the sharp, dying scent of autumn | the heady scent (=strong scent)of magnolias
fragrance/perfume a pleasant smell, especially from flowers, plants, or fruit. Fragrance and perfume are more formal than scent: the sweet perfume of the orange blossoms | Each mango has its own special fragrance.
aroma formal a pleasant smell from food or coffee: the aroma of fresh coffee | The kitchen was filled with the aroma of mince pies.
odour British English, odor American English formal an unpleasant smell: An unpleasant odour was coming from the dustbins. | the odor of stale tobacco smoke
pong British English informal an unpleasant smell: What’s that horrible pong?
stink/stench a very strong and unpleasant smell: I couldn’t get rid of the stink of sweat. | The toilet gave off a terrible stench.

Smell Stench Unpleasant Scent Whiff Pleasant Formal Aroma