gesundheit /ɡəˈzʊnt.haɪt/ exclamation3 •(US, Canada) Said to someone who has just sneezed.Everybody Was at It, and There Was No One to Say Gesundheit — 1897 •(humorous) Said in response to a word that sounds onomatopoeically similar to a sneeze.Flynn: All right, Blondie. Rapunzel: Rapunzel! Flynn: Gesundheit. — 2010 •(old-fashioned) Used as a toast