As a Noun: 1. Careful and prolonged thought about something. English = consideration. 2. Careful and prolonged thought about something in depth. English = reflection. Formal English = rumination. As a Verb or Adjective: 1. To think about something carefully and at length. English = consider. 2. To think about something carefully, slowly, at length and in depth. English = ponder, reflect upon. Formal English = ruminate.