BASE jump

BASE (“building, antenna-tower, span, earth”) +‎ jump

BASE jump (plural BASE jumps)

1. A parachute jump from a fixed point rather than from an aircraft; typically from a tall building, high bridge or rock formation.

BASE jump (third-person singular simple present BASE jumps, present participle BASE jumping, simple past and past participle BASE jumped)

1. (intransitive) To make such a jump.
   • 2015 October 2, Veronica Rocha, “BASE jumper Johnny Strange dies in wingsuit jump in Swiss Alps”, in Los Angeles Times‎:

     Adventurer Johnny Strange, who grew up in Malibu, was killed Thursday when he crashed while wingsuit BASE jumping in the Swiss Alps.

• BASE jumper