自じ己こ署しょ名めい証しょう明めい書しょMeaningsNoun1. self-signed certificateKanji used自self己oneself署field office名name証proof明bright書writeComposed of自じ己こself; oneselfNoun署しょ名めいsignature; autographNoun証しょう明めい書しょcertificate; credentials; testimonialNoun