contemplate
     v 1: look at thoughtfully; observe deep in thought; "contemplate
          one's navel"
     2: consider as a possibility; "I contemplated leaving school
        and taking a full-time job"
     3: think intently and at length, as for spiritual purposes; "He
        is meditating in his study" [syn: {study}, {meditate}]
     4: reflect deeply on a subject; "I mulled over the events of
        the afternoon"; "philosophers have speculated on the
        question of God for thousands of years"; "The scientist
        must stop to observe and start to excogitate" [syn: {chew
        over}, {think over}, {meditate}, {ponder}, {excogitate}, {muse},
         {reflect}, {mull}, {mull over}, {ruminate}, {speculate}]
Source: WordNet® 2.0