再さいCommon wordJLPTN2Freq.FrequencyTop 1,000Meanings1prefixre-; againProductive prefix attached to Sino-Japanese nouns and suru-verbs to express repetition or doing something again.再さい確かく認にんをお願ねがいします。Please reconfirm.再さい出しゅっ発ぱつの準じゅん備びはできていますか。Are you ready for a fresh start?