consume
verb
eat up completely, as with great appetite
“Some people can down a pound of meat in the course of one meal”
“The teenagers demolished four pizzas among them”
serve oneself to, or consume regularly
“Have another bowl of chicken soup!”
“I don't take sugar in my coffee”
Oppositesabstainspend extravagantly
“waste not, want not”
destroy completely
“The fire consumed the building”
use up (resources or materials)
“this car consumes a lot of gas”
“We exhausted our savings”
engage fully
“The effort to pass the exam consumed all his energy”
Source: WordNet 3.1, Princeton University
