Definitions of think:

• noun:   an instance of deliberate thinking

  Example: "I need to give it a good think"

• verb:   bring into a given condition by mental preoccupation
• verb:   be capable of conscious thought

  Example: "Man is the only creature that thinks"

• verb:   use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments

  Example: "I've been thinking all day and getting nowhere"

• verb:   have or formulate in the mind

  Example: "Think good thoughts"

• verb:   expect, believe, or suppose

  Example: "He didn't think to find her in the kitchen"

• verb:   judge or regard; look upon; judge

  Example: "I think he is very smart"

• verb:   dispose the mind in a certain way

  Example: "Do you really think so?"

• verb:   focus one's attention on a certain state

  Example: "Think big"

• verb:   ponder; reflect on, or reason about

  Example: "Think the matter through"

• verb:   decide by pondering, reasoning, or reflecting

  Example: "Can you think what to do next?"

• verb:   imagine or visualize

  Example: "Just think--you could be rich one day!"

• verb:   have in mind as a purpose

  Example: "She didn't think to harm me"

• verb:   recall knowledge from memory; have a recollection

  Example: "I can't think what her last name was"