anymore! AAAAAAAAAAAAAAAAAAARRRRRRRRRRRRGGGGHHHHHHH---Chhooooooo ah-choo / atchoo / achoo sound of sneezing (Onomatopoeia) A  sneeze  (or  sternutation ) is a semi-autonomous,  convulsive  expulsion of  air  from the  lungs  through the nose and mouth, usually caused by foreign particles irritating the nasal mucosa . Sneezing can also be triggered through  sudden exposure to bright