Keywords: consideration, reflection, rumination, consider, wonder, ponder, reflect, ruminate
As a Noun
Careful and prolonged thought about something. English = consideration.
Careful and prolonged thought about something in depth. English = reflection. Formal English = rumination.
As a Verb or Adjective
To think about something carefully and at length. English = consider.
To think about something you do not know or understand in order to try to guess or understand more about it. English = wonder.
To think about something carefully, slowly, at length and in depth. English = ponder, reflect upon. Formal English = ruminate.