As a Noun: 1. The act of suddenly taking in your breath and then blowing it down your nose noisily. People do it a lot when they have a cold. English = sneeze. 2. [Especially with a repeated movement], an illness similar to a cold, in which people sneeze a lot because they are allergic to some types of pollen. English = hay fever. As a Verb or Adjective: 1. To suddenly take in your breath and then blow it down your nose noisily. People do it a lot when they have a cold. English = sneeze.