• 記しるす — to record, to write down
• 記録きろく — record / documentation
• 記事きじ — article / news story
• 記念きねん — memory / commemoration
• 暗記あんき — memorization
• 記憶きおく — memory / recollection
• 明記めいき — clear statement
• 手記しゅき — personal account / memoir
• 注記ちゅうき — note / annotation

Formed from 言 (words) and 己 (oneself), suggesting "to speak or record one's own words." This kanji is used in contexts involving writing, documenting, or remembering.

日記にっきを 記しるしています。
I’m keeping a diary.

記念日きねんびを 忘わすれないでください。
Please don’t forget the anniversary.