a symptom consisting of the involuntary expulsion of air from the nose
source: WordNet 3.0
A sudden and violent ejection of air with an audible sound, chiefly through the nose.
source: Webster 1913
verb
exhale spasmodically, as when an irritant entered one's nose
Pepper makes me sneeze.
source: WordNet 3.0
To emit air, chiefly through the nose, audibly and violently, by a kind of involuntary convulsive force, occasioned by irritation of the inner membrane of the nose.