Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun sniff

1 sense of sniff

Sense 1
sniff, snuff -- (sensing an odor by inhaling through the nose)
       => smell, smelling -- (the act of perceiving the odor of something)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb sniff

2 senses of sniff

Sense 1
sniff, whiff -- (perceive by inhaling through the nose; "sniff the perfume")
       => smell -- (inhale the odor of; perceive by the olfactory sense)
          Phrasal Verb-> sniff out#1

Sense 2
sniff, sniffle -- (inhale audibly through the nose; "the sick student was sniffling in the back row")
       => inhale, inspire, breathe in -- (draw in (air); "Inhale deeply"; "inhale the fresh mountain air"; "The patient has trouble inspiring"; "The lung cancer patient cannot inspire air very well")