기념일 (kinyeomil) means “anniversary”

More examples

다음 주가 우리 결혼 기념일이라서 저녁을 예약했어요.ta eum chu ga u ri kyeol hon ki nyeo mi ri ra seo cheo nyeo geul ye ya kae sseo yo

I made a dinner reservation because next week is our wedding anniversary.

A day set aside to remember and honor an important event or person.

생일saengil: A yearly celebration of the day a person was born.
기념kinyeom: A way of honoring someone or something by keeping it in memory.

중요한 일이나 사람을 기억하고 기념하기 위해 정한 날.chung yo han i ri na sa ra meul ki eo ka go ki nyeom ha gi wi hae cheong han nal

The word is formed from 기념 (ginyeo, "commemoration") and 일 (mil, "day"), linking remembrance with a special day.

Unlike a date used only for scheduling, this word highlights the meaning or memory attached to the day.