- 考える【かんがえる】 - to think (about, of), to think over, to ponder, to contemplate, to reflect (on), to meditate (on), to consider, to bear in mind, to allow for, to take into consideration, to think (that), to believe, to hold (a view), to judge, to conclude, to suspect, to intend (to do), to think of (doing), to plan, to predict, to anticipate, to expect, to imagine, to come up with, to think up, to contrive, to devise, to consider (as), to regard (as), to look on (as), to take, to view 
- 考え【かんがえ】 - thinking, thought, view, opinion, concept, idea, notion, imagination, intention, plan, design, consideration, judgement, deliberation, reflection, wish, hope, expectation 
- 思考【しこう】 - thought, consideration, thinking 
- 考え方【かんがえかた】 - way of thinking 
- 参考【さんこう】 - reference, consultation 
- 考え直す【かんがえなおす】 - to reconsider, to rethink, to reassess 
- 考慮【こうりょ】 - consideration, taking into account 
- 選考【せんこう】 - selection, screening 
- 考証【こうしょう】 - investigation into historical evidence, study of historical artifacts 
- 考案【こうあん】 - plan, device, idea, design, contrivance, conception, invention 
- 考古学【こうこがく】 - archaeology, archeology 
- 再考【さいこう】 - reconsideration 
- 考察【こうさつ】 - consideration, inquiry, enquiry, investigation, study 
- 考え事【かんがえごと】 - something to think about, one's thoughts, concern, worry, thinking about something, being absorbed in one's thoughts 
- 考査【こうさ】 - examination, consideration, test, quiz 
- 考え込む【かんがえこむ】 - to ponder, to brood 
- 論考【ろんこう】 - study (of), discussion, discourse, inquiry, research article, academic paper 
- 一考【いっこう】 - consideration, thought 
- 考え出す【かんがえだす】 - to think out, to devise, to invent, to begin to think, to come up with a plan