• skyruning,
• skyyrunning,
• skyrunnung,
• skyrnning,
• skyrunnning,
• skyrinnig,
• skyrunninng,
• skyyruning

• skydiving,
• skyrocketing,
• Skylarking,
• skynet,
• skyscraper,
• skateboarding.

The adjective form of the word "skyrunning" is "skyrunning". It is the same word used as an adjective to describe an activity or race that takes place in mountainous terrain at high altitude.

The plural form of "skyrunning" is "skyrunnings".

The singular form of the word "skyrunning" is "skyrun".