What does 予習 mean?
予習 is a Japanese noun meaning “preparation of lessons (for class)” in English. It is written as 予習 in kanji, よしゅう in hiragana, and yoshuu in romaji. This word is part of JLPT N4 vocabulary.
Example sentence
トムは明日の授業の予習をしているらしい。
Tom seems to be preparing for tomorrow's lessons.