Unicode Block - Ideographic Symbols and Punctuation

Ideographic Symbols and Punctuation is a small collection of characters used for annotating and referencing classical Chinese and Japanese texts, primarily comprising the "iteration mark" (U+16FE0, 〻) and the "ditto mark" (U+16FE1, 〼), which denote repetition of a preceding character or phrase. These marks appear in historical and literary manuscripts, where they function to avoid rewriting identical ideographs, thereby streamlining scribal and typographic practice. The block also includes a single "kangxi radical" indicator (U+16FE2, ㇾ) and a "ideographic number zero" (U+16FE3, 〇), the latter used in some archaic numbering systems. Beyond these few symbols, the block remains mostly unassigned, reflecting its highly specialized purpose in preserving and clarifying traditional East Asian orthographic conventions.