Synonyms for High include:
adenoidal, advanced, ahead, altissimo, altitudinous, alto, apical, arch, ascending, aweigh, bacchanal, bacchanalian, bacchic, beery, besotted, best, bibulous, big, bilgy, blind drunk, blotto, boozy, broad, carousing, cockeyed, commanding, condescending, countertenor, crocked, crowning, dominant, dominating, doped, dormie, dormy, drugged, drunk, drunken, elated, eminent, euphoric, exhilarated, exultant, exulting, falsetto, fetid, flooding, foetid, foul, foul-smelling, frowsty, fuddled, full, full-length, funky, fusty, gamey, gamy, gangling, gangly, gladdened, graduate, half-seas-over, happy, heavenward, high, high-altitude, high-level, high-pitched, high-ranking, high-stepped, high-stepping, high-top, high-topped, higher, hopped-up, ill-scented, ill-smelling, in flood, in height, in high spirits, in the lead, inebriated, intoxicated, joyous, jubilant, lanky, large, last, leading, leggy, loaded, lofty, long, long-legged, long-shanked, long-stalked, majestic, malodorous, malodourous, mellow, mephitic, miasmic, musty, narcotised, narcotized, nasal, niffy, noisome, odoriferous, odorous, olympian, orgiastic, overflowing, overlooking, patronising, patronizing, peaky, pie-eyed, piercing, pinched, piping, pissed, pixilated, plastered, postgraduate, potty, preeminent, prideful, putrid-smelling, rancid, rangy, rank-smelling, reeking, rejoicing, risen, screaky, screechy, sharp, shrill, shrilling, skyward, slopped, sloshed, smashed, smelly, soaked, soaring, sopranino, soprano, sottish, sour, soused, sozzled, spiky, sprouted, squeaking, squeaky, squealing, squiffy, stately, statuesque, steep, stiff, stinking, stinky, stoned, sublime, superior, superordinate, swollen, tall, tall-growing, tall-stalked, tallish, tenor, tiddley, tiddly, tight, tipsy, top, topmost, towering, treble, triumphal, triumphant, unpeasant-smelling, up, upbound, upfield, uplifted, upmost, upper, upper-level, uppermost, upward, utmost, wet
high is a ADJ.
high, high up, luxuriously, richly
high is a ADV.
heights, high, high gear, high pressure, high schoo, high school, highschoo, highschool, senior high, senior high school
high is a NOUN.