snort
v.v. to make a loud noise by forcing air out through your nose. You might do this when you are laughing, angry, or showing that you think something is silly.
v. to force air violently through the nose with a rough, audible sound. Often used to express contempt, amusement, or indignation.
He tried to hide his laugh but let out a loud snort.
When I suggested that we should walk ten miles in the rain, she just gave a loud snort of derision.
The horse gave a sudden snort and tossed its head, startled by the rustling of the dry leaves in the autumn wind.
From Middle English snorten, from earlier fnorten, from Old English *fnorettan, related to Middle English snoren, fnoren, from Old English fnora. See snore and sneeze for more on the change from fn- to sn-.
Can be used as an intransitive verb or transitively when referring to the inhalation of a substance.