To eat completely or entirely
To take (food) into the body as nourishment
To do away with completely and destructively
To use up foolishly or needlessly
To be avidly interested in
Ant-mimicking spiders have been seen now and again to devour their models.
If they had, they would devour all who passed near them.
Most earthworms live in the soil, which they devour as they burrow through it.
Her eyes widened, then ran over him as if she were appraising a sinful dessert, ready to devour it.
The yellow maggots devour the seeds and thus ruin the crop. When deformed fruits are noticed they should be picked off and burned immediately.