記念
きねん · kinen · JLPT N3 · noun
commemoration
📸 記念 = record (記) + thought (念): a thought you write down to keep
記 means to write down or record, as in 日記 (diary). 念 means a thought or feeling held in the heart. A 記念 is a feeling kept on record. 記念写真 (kinen shashin) is a souvenir photo, and 記念日 is an anniversary.
念 — 今 (now, phonetic) + 心 (heart)
念 is a semantic-phonetic compound: 心 (heart) gives the meaning, while 今 (now) supplies the sound. The original sense was 'what is on the heart right now' — a thought held in mind. From this came the modern meanings 'to think of,' 'to miss,' and 'to recite' (holding words in mind).