› to use fuel, energy, or time, esp. in large amounts: Weekend shopping chores consumed much of her time. › To consume is also to eat or drink: They consume a lot of candy. › If a fire consumes something, it destroys it completely: Fire had consumed the whole building. › Someone can be said to be consumed by/with a feeling if that feeling is extremely strong: We were consumed with joy and relief, as well as profound gratitude.