What does 願い事 mean?
願い事 is a Japanese noun meaning “one's wish” in English. It is written as 願い事 in kanji, ねがいごと in hiragana, and negaigoto in romaji. This word is part of JLPT N4 vocabulary.
Example sentence
お願い、私のこと忘れないって約束して。
Please promise me that you won't forget me.