smell (noun) – el olor
(Pronounced oh-lohr)
To remember that smell is pronounced oh-lohr (olor) in Spanish, use the following mnemonic:
The smell was terrible. "Oh lord! (olor) Where is that odour coming from?" he said.

Olor is masculine, so it's el olor. Imagine an elephant detecting a smell from miles away.

Examples of olor (smell) in a sentence
El olor de la comida me da hambre.
(The smell of the food makes me hungry.)
Hay un olor extraño en la cocina.
(There is a strange smell in the kitchen.)
Me encanta el olor de las flores en primavera.
(I love the smell of flowers in spring.)