What does 記念日 mean?
記念日 is a Japanese noun meaning “anniversary” in English. It is written as 記念日 in kanji, きねんび in hiragana, and kinenbi in romaji. This word is part of JLPT N4 vocabulary.
Example sentence
今日は私達の記念日なので、夕御飯もスペシャルでいこう。
Today is our anniversary so let's make this a special dinner.