speisen

to dine, to eat in a cultured (typically upscale) setting

"Sie speisten in den edelsten Restaurants."

to eat (something delicious and/or expensive)

"Sie speisten regelmäßig Hummer."

to feed (those in need, or the frequenters of a canteen)

"die Hungrigen speisen"

to feed, supply

"Viele Bäche speisen den Fluss."