English to English

verb (v)

• reflect deeply on a subject(verb.cognition)

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

  source: wordnet30
• To weigh.(verb)

  source: webster1913
• To think; to deliberate; to muse; -- usually followed by on or over.(verb)

  source: webster1913