sneeze /sniːz/verb 3noun 1forms 5phrases 1 verb3 •To expel air as a reflex induced by an irritation in the nose.To avoid passing on your illness, you should sneeze into your sleeve. •To expel air as if the nose were irritated. •To expel or displace (air, snot, etc) from the nose or mouth by the process above.Lily shook her head violently and sneezed a large blue-bottle fly from where that insect had perched itself on the tip of her nose. — 1924 noun1 •An act of sneezing.Jared's hay fever gives him terrible sneezes. formssneezed · snoze · snozen · sneezing · sneezes Phrases with sneeze sneeze on the truthTo sneeze just after somebody says something, superstitiously believed to verify or validate their statement.