Skydiving and Sky dive

Skydiving noun - Performing acrobatics in free fall before pulling the ripcord of a parachute.

Sky dive is a synonym for skydiving. In some cases you can use "Sky dive" instead a verb "Skydiving".

Sky dive verb - Jump from an airplane and perform various maneuvers before opening one's parachute.

Skydiving is a synonym for sky dive. Sometimes you can replace term "Skydiving" with "Sky dive", this terms are similar.