high
noun
a lofty level or position or degree
“summer temperatures reached an all-time high”
Oppositeslowan air mass of higher than normal pressure
“the east coast benefits from a Bermuda high”
a state of sustained elation
“I'm on a permanent high these days”
Oppositeslow spiritsa state of altered consciousness induced by alcohol or narcotics
“they took drugs to get a high on”
a high place
“they stood on high and observed the countryside”
“he doesn't like heights”
Synonymsheightsa public secondary school usually including grades 9 through 12
“he goes to the neighborhood highschool”
a forward gear with a gear ratio that gives the greatest vehicle velocity for a given engine speed
Synonymshigh gear
adjective
greater than normal in degree or intensity or amount
“a high temperature”
“a high price”
Oppositeslow(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”
“high ceilings”
Oppositeslowstanding above others in quality or position
“people in high places”
“the high priest”
Synonymseminentused of sounds and voices; high in pitch or frequency
Synonymshigh-pitchedOppositeslowhappy and excited and energetic
Synonymsin high spirits(used of the smell of meat) smelling spoiled or tainted
slightly and pleasantly intoxicated from alcohol or a drug (especially marijuana)
Synonymsmellow
adverb
at a great altitude
“he climbed high on the ladder”
Synonymshigh upin or to a high position, amount, or degree
“prices have gone up far too high”
in a rich manner
“he lives high”
far up toward the source
“he lives high up the river”
Source: WordNet 3.1, Princeton University