hill

1 a quantity of things thrown or stacked on one another the ants made little hills of dirt Synonyms cock, heap, pile, mound, mountain, stackRelated Words bank, bar, drift, embankment; bed, layer; mow, pyramid, rick; barrow, cairn, pyre; accumulation, aggregate, array, assemblage, collection, conglomeration, gathering, grouping, hoard, huddle, jumble, knot, pileup

2 an area of high ground a town nestled in a valley surrounded by green hills Synonyms altitude(s), elevation, eminence, highland, height, hump, mound, prominence, rise, uplandRelated Words alp, mount, mountain, peak; butte, mesa, plateau, table, tableland; bluff, cliff, crag, precipice, steep, tor; ridge, sierra; dome, sugarloaf; foothill, hillock, hummock, knob, knoll; downsNear Antonyms dale, dell, depression, dingle, glen, hollow, vale, valley; basin, bottom, bottomland, fen, flat, floodplain, plain, tidewaterAntonyms lowland

3 an upward slope I got stuck behind a truck going up a hill in a no-passing zone Synonyms acclivity, ascent, rise, upgrade, uphill, upriseRelated Words cant, diagonal, glacis, grade, gradient, inclination, incline, lean, pitch, rake, tilt; climb, hump, mound, ridge, swellNear Antonyms basin, depression, hollowAntonyms declension, decline, declivity, descent, dip, downgrade, downhill, drop-off, fall, hang, hanging