birthday

意味

• n. 誕生日

英語の定義

• n. an anniversary of the day on which a person was born (or the celebration of it)
• n. the date on which a person was born

語形変化

複数形

birthdays

例文

1. n. 誕生日

   We are planning a surprise party for my sister's birthday next weekend.

   来週末、妹の birthdays のためにサプライズパーティーを計画しています。