匂う （におう） to be fragrant, to smell (good), to stink, to smell (bad), to glow, to be bright, to smack of, to show hints of

匂い （におい） odour, odor, scent, smell, stench, aura, whiff, smacks of ..., sense, flavour, flavor

匂い油 （においあぶら） perfumed hair oil

匂わせる （におわせる） to give off (a smell, scent, aroma), to smell of, to perfume (a room, etc.), to hint at, to suggest, to insinuate