What does Airialist mean?

"Airialist" is not a standard English word. It seems likely to be a misspelling of "Aerialist."

An Aerialist is a performer who specializes in aerial acts, such as:

* Trapeze: Swinging and performing acrobatics on a trapeze.

* Silks: Climbing, hanging, and performing on aerial silks.

* Lyra: Performing on a circular apparatus suspended from the ceiling.

* Rope: Climbing and performing on a single rope.

* Other Aerial Apparatuses: Using various aerial devices like swings, hoops, and ladders.

So, if you meant "Airialist," it's probably a typo for "Aerialist," referring to a performer in an aerial act.