Real Dictionary

ski jump
countable noun: A ski jump is a specially-built steep slope covered in snow whose lower end curves upwards. People ski down it and go into the air at the end.

ski jump in American English
a jump made by a skier after gaining momentum by a glide down a long, usually artificial incline or track
noun: a snow-covered chute or slide at the side of a hill or built up on top of the hill, the base of the chute having a horizontal ramp that enables a skier to speed down the chute, take off at the end of the ramp, and land further down the hill
verb: to execute or make a ski jump

ski jump in British English
noun: a high ramp overhanging a slope from which skiers compete to make the longest jump
verb: to perform a ski jump