Definition of thinks:
(v) :
(transitive) To ponder, to go over in one's mind.
(v) :
(transitive) To have (some statement) in one's mind; to say to oneself mentally.
(v) :
(transitive) To be of opinion (that); to consider, judge, regard, or look upon (something) as.
(v) :
(transitive) To guess; to reckon; to believe while admittedly being uncertain.
(v) :
To plan; to be considering; to be of a mind (to do something).
(v) :
(intransitive) To communicate to oneself in one's mind, to try to find a solution to a problem.