• 考かんがえる — to think / to consider
• 参考さんこう — reference
• 思考しこう — thought / thinking
• 考察こうさつ — examination / analysis
• 考案こうあん — invention / idea
• 考古学こうこがく — archaeology
• 熟考じゅっこう — careful consideration / deliberation
• 備考びこう — remarks / notes
• 一考いっこう — a thought / consideration

考 combines the symbol for old (老) with a sound component, implying wisdom or deliberate thought. It originally suggested ideas passed from elders or deep reflection.

It’s a central kanji in educational and creative vocabulary — from thinking to planning and research.

よく考かんがえて答こたえてください。
Please think carefully before answering.

将来しょうらいについて考かんがえるのは 大切たいせつです。
It's important to think about your future.