The word we use for the sound is onomatopoetic — it imitates the sound that we associate with the sneeze itself. We English speakers think that the sneeze noises sounds like “achoo,” and, hence, “achoo” is the word we use to describe the sound of a sneeze.

Why do people say achoo When sneeze?

This is the 'Aaah' part of the sneeze. The 'Choo! ' occurs on the exhale because most of the muscles in your body are reflexively contracting. This clamps your mouth shut until the pressure in your lungs rises too high and the air escapes in a burst.

Why is it called achoo?

This instance of onomatopoeia imitates the sound of sneezing. ... A sneeze sound in Russian can be apchkhi; in Korean, achee. In the medical world, ACHOO is an acronym for a sternutation disorder called Autosomal Dominant Compelling Helioophthalmic Outburst Syndrome that results in uncontrollable sneezing.