(transitive, intransitive) To make a short, audible inhalation, through the nose, as when smelling something.

(countable) An instance of sniffing. / (countable) A quantity of something that is inhaled through the nose / (countable, colloquial) A brief perception, or tiny amount. / (uncountable, slang) Cocaine.

A short inhalation sound, sometimes associated with crying.

Third-person singular simple present indicative form of sniff

plural of sniff

plural of sniff test

Alternative form of resniff

(idiomatic) An informal check of an idea or proposal, using one's common sense or sense of propriety.

A fluoroscopic medical test during which the examinee is asked to "sniff" (quickly breathe in through the nose); diaphragm fluoroscopy.

Describing any of various products that are impregnated with a substance that releases an odour when scratched