sneeze

n. Sudden loud involuntary expulsion of air from the nose and mouth caused by irritation of the nostrils. v. (-zing) make a sneeze.  not to be sneezed at colloq. Worth having or considering. [old english]

v. i. 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.