to eat / to consume / to eat at (a cafeteria etc) / to eradicate / to destroy / to absorb / to suffer / to stammer (Taiwan pr. for this sense is [ji2])
lit. the mountain dweller lives off the mountain, the shore dweller lives off the sea (idiom) / fig. to make the best use of local resources / to exploit one's position to advance oneself / to find one's niche / to live off the land