Definition of "High" :
noun: a forward gear with a gear ratio that gives the greatest vehicle velocity for a given engine speed
noun: a lofty level or position or degree
"Summer temperatures reached an all-time high."
noun: a public secondary school usually including grades 9 through 12
"He goes to the neighborhood highschool."
noun: a high place
"They stood on high and observed the countryside."
noun: a state of altered consciousness induced by alcohol or narcotics
"They took drugs to get a high on."
noun: a state of sustained elation
"I'm on a permanent high these days."
noun: an air mass of higher than normal pressure
"The east coast benefits from a Bermuda high."
adjective: happy and excited and energetic
adjective: slightly and pleasantly intoxicated from alcohol or a drug (especially marijuana)
adjective: (used of the smell of meat) smelling spoiled or tainted
adjective: (literal meaning) being at or having a relatively great or specific elevation or upward extension (sometimes used in combinations like knee-high')
"A high mountain."
adjective: greater than normal in degree or intensity or amount
"A high temperature."
adjective: used of sounds and voices; high in pitch or frequency
adjective: standing above others in quality or position
"People in high places."
adverb: at a great altitude
"He climbed high on the ladder."
adverb: far up toward the source
"He lives high up the river."
adverb: in or to a high position, amount, or degree
"Prices have gone up far too high."
adverb: in a rich manner
"He lives high."