Nushu script iteration mark, a modifier letter used in Nushu, the women's writing from Hunan China, to indicate repetition of a character.
U+16FE0TANGUT ITERATION MARKU+16FE2OLD CHINESE HOOK MARKU+16FE3OLD CHINESE ITERATION MARKU+16FE4KHITAN SMALL SCRIPT FILLERU+16FF0VIETNAMESE ALTERNATE READING MARK CAU+16FF1VIETNAMESE ALTERNATE READING MARK NHAYU+16FF2CHINESE SMALL SIMPLIFIED ERU+16FF3CHINESE SMALL TRADITIONAL ERU+16FF4YANGQIN SIGN SLOW ONE BEATU+16FF5YANGQIN SIGN SLOW THREE HALF BEATSU+16FF6YANGQIN SIGN SLOW TWO BEATS12 characters in the Ideographic Symbols and Punctuation Unicode block.
U+16FE0TANGUT ITERATION MARKU+16FE1NUSHU ITERATION MARKU+16FE2OLD CHINESE HOOK MARKU+16FE3OLD CHINESE ITERATION MARKU+16FE4KHITAN SMALL SCRIPT FILLERU+16FF0VIETNAMESE ALTERNATE READING MARK CAU+16FF1VIETNAMESE ALTERNATE READING MARK NHAYU+16FF2CHINESE SMALL SIMPLIFIED ERU+16FF3CHINESE SMALL TRADITIONAL ERU+16FF4YANGQIN SIGN SLOW ONE BEATU+16FF5YANGQIN SIGN SLOW THREE HALF BEATSU+16FF6YANGQIN SIGN SLOW TWO BEATS