a natural elevation of the earth's surface, smaller than a mountain.

an incline, esp. in a road

This old jalopy won't make it up the next hill.

an artificial heap, pile, or mound

a hill made by ants.

a small mound of earth raised about a cultivated plant or a cluster of such plants.

the plant or plants so surrounded

a hill of potatoes.

Baseball . mound 1 ( def. 4 ) .

the Hill. Capitol Hill.

to surround with hills

to hill potatoes.

to form into a hill or heap. ?

go over the hill

Slang .

to break out of prison.

to absent oneself without leave from one's military unit.

to leave suddenly or mysteriously

Rumor has it that her husband has gone over the hill.

over the hill

relatively advanced in age.

past one's prime.

noun

canyon , ditch , gulley

noun

acclivity , ascent , bluff , butte , cliff , climb , down , drift , dune , elevation , eminence , esker , fell , gradient , headland , heap , height , highland , hillock , hilltop , hummock , inclination , incline , knoll , mesa , mound , mount , precipice , prominence , promontory , protuberance , range , ridge , rise , rising ground , shock , slope , stack , summit , talus , tor , upland , agglomeration , bank , cumulus , mass , mess , mountain , pile , tumble , acropolis , brae , copple , cover , drumlin , foothill , hogback , holt , inselberg , kame , knob , kopje , monadnock , monticle , monticule , os , scree , tuffet

verb

bank , drift , lump , mound , pile , stack