1. To use.
    The power plant consumes 30 tons of coal per hour.
  2. To eat.
    Baby birds consume their own weight in food each day.
  3. To completely occupy the thoughts or attention of.
    Desire consumed him.
  4. To destroy completely.
    The building was consumed by fire.
  5. To waste away slowly.

The above text is a snippet from Wiktionary: consume
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!