verb (v)

• look at thoughtfully; observe deep in thought(verb.perception)

  Example:
  Contemplate one's navel.
  

  source: wordnet30
• consider as a possibility(verb.cognition)

  Example:
  I contemplated leaving school and taking a full-time job.
  

  source: wordnet30
• think intently and at length, as for spiritual purposes(verb.cognition)

  Synonym:
  meditate, study
  

  source: wordnet30
• reflect deeply on a subject(verb.cognition)

  Synonym:
  chew over, excogitate, meditate, mull, mull over, muse, ponder, reflect, ruminate, speculate, think over
  

  source: wordnet30
• To look at on all sides or in all its bearings; to view or consider with continued attention; to regard with deliberate care; to meditate on; to study.(verb)

  source: webster1913
• To consider or think studiously; to ponder; to reflect; to muse; to meditate.(verb)

  source: webster1913