High - definition of high by The Free Dictionary Define high high synonyms, high pronunciation, high translation, English dictionary definition of high adj high·er , high·est 1 a Having a relatively great elevation; extending far upward: a high mountain; a high tower b Extending a specified distance
HIGH Definition Meaning | Dictionary. com High definition: having a great or considerable extent or reach upward or vertically; lofty; tall See examples of HIGH used in a sentence