私し印いんしいんMeanings1nounpersonal seal; private sealA seal used by an individual for non-official purposes, as opposed to a registered seal (実印) or a company seal.銀ぎん行こうで使つかう印いん鑑かんは実じつ印いんではなく私し印いんで十じゅう分ぶんです。For the bank, a personal seal is sufficient rather than a registered seal.