1. smell; scent; odour; odor; stench
臭い used for unpleasant smells
あの甘い匂いも、まったく感じない。I can't smell that sweet scent at all either.
2. aura; whiff; smack; flavour; flavor; mood
この話には嘘の匂いを感じる。I sense a whiff of a lie in this story.
3. faint, mist-like pattern along the temper line of a Japanese sword