Definitions of consume:

• verb:   engage fully

  Example: "The effort to pass the exam consumed all his energy"

• verb:   serve oneself to, or consume regularly
• verb:   use up (resources or materials)

  Example: "This car consumes a lot of gas"

• verb:   spend extravagantly
• verb:   destroy completely

  Example: "The fire consumed the building"

• verb:   eat immoderately