think of

verb3

1. •
   To create in one's mind; to originate an idea through thought.

   • I only had ten minutes to think of a solution.
2. •
   Consider, used to emphasise a reason to act in a certain way.

   • We can't employ a gardener as well as a handyman. Think of the expense!
   • I can't turn down the offer. Think of what we could do with that money!
3. •
   Used to suggest an aberrant thought, idea or action.

   • Oh no! I put the casserole in the freezer and the ice cream in the oven. What was I thinking of?