1To commemorate or celebrate an important event or person so as not to forget them, often through an anniversary or ceremony.
会社の創立50周年を記念して、パーティーが開かれた。
A party was held to commemorate the company's 50th anniversary.
卒業を記念して、クラス全員で写真を撮った。
The whole class took a photo to commemorate graduation.
開店一周年を記念してセールが行われる。
A sale will be held to celebrate the store's first anniversary.
その像は戦争の犠牲者を記念して建てられた。
The statue was built to commemorate the victims of the war.
2An object kept as a memento—a souvenir or keepsake from a trip or event.
卒業式の記念にみんなで寄せ書きを作った。
We all made a signed message board as a keepsake for graduation.
京都旅行の記念に扇子を買った。
I bought a folding fan as a souvenir from my trip to Kyoto.
これは祖父からもらった大切な記念の品だ。
This is a precious keepsake I received from my grandfather.