adjective

1. of more than normal height; lofty; tall: not used of persons
2. extending upward a (specified) distance
3. situated far above the ground or some other level
4. reaching to or done from a height a high jump, a high dive
5. 1. above other persons or things in rank, position, strength, etc.; most important or powerful
   2. above other persons or things in quality, character, etc.; superior; exalted; excellent
6. grave; very serious high treason
7. greatly advanced or developed; complex: usually in the comparative degree higher mathematics, the higher vertebrates
8. main; principal; chief a high priest
9. greater in size, amount, degree, power, intensity, etc. than usual high prices, high voltage, a high profile
10. advanced to its acme or fullness; fully reached high noon
11. expensive; costly
12. luxurious and extravagant high living
13. haughty; overbearing
14. designating or producing tones made by relatively fast vibrations; acute in pitch; sharp; shrill
15. slightly tainted; having a strong smell: said of meat, esp. game
16. extremely formal or rigid in matters of ceremony, doctrine, etc.
17. excited; elated high spirits
18. far from the equator a high latitude
19. ☆ designating or of that gear ratio of a motor vehicle transmission which produces the highest speed and the lowest torque
20. Slang
    1. drunk; intoxicated
    2. under the influence of a drug
21. Phonet. articulated with the tongue held in a relatively elevated position in the mouth: said of certain vowels, as (ē) in feet

Etymology: ME heigh, hei, hie < OE heah, akin to Ger hoch, Goth hauhs < IE *keuk- < base *keu-, to curve, arch > Sans kakúd-, peak, Russ kúča, heap

adverb

1. in a high manner
2. in, at, to, or toward a high degree, level, place, position, etc.

noun

1. a high degree, level, place, position, etc.
2. ☆ an area of high barometric pressure
3. ☆ that gear of a motor vehicle, etc. producing the greatest speed and the lowest torque
4. Slang a condition of euphoria induced as by drugs