acrophobia

noun

1. (countable, uncountable)phobia or strong fear of being high above ground level

   “You know, being elevated to the position of Chairman has given me rather a bad attack of acrophobia.”

   “But it's no place for anyone with acrophobia, what with its myriad drop-offs and switchbacks.”

   “You know, acrophobia? I get nervous just standing this close to the edge.”

   “Acrophobia describes an intense fear of heights that can cause significant anxiety and panic.”

   “The definition of acrophobia is, simply put, a phobia of heights.”