U+3198 "㆘" Ideographic Annotation Bottom Mark Unicode Character
Unicode Version 17.0
㆘
U+3198 "㆘" Ideographic Annotation Bottom Mark is a small square or glyph used in certain East Asian contexts, particularly within Japanese and Chinese text processing, to serve as a visual indicator or placeholder for the bottom of an annotation area. It functions much like a corner bracket, marking the lower boundary or end position of a note, comment, or supplementary explanation within a document without interrupting the main flow of characters. This symbol is part of a set of annotation marks in the Unicode standard, each designed to denote specific alignment points for easier reference in printed or digital layouts.
General Properties
| Code Point | U+3198 |
| Version Added | 1.1 |
| Name | Ideographic Annotation Bottom Mark |
| Unicode 1.0 Name | Kaeriten Ge |
| Block | Kanbun |
| General Category | Other Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Super |
| Decomposition Mapping | "下" U+4E0B CJK Unified Ideograph-# |
Encodings
| HTML Decimal Encoding | ㆘ |
| HTML Hex Encoding | ㆘ |
| UTF-8 Encoding | 0xE3 0x86 0x98 |
| UTF-16 Encoding | 0x3198 |
| UTF-32 Encoding | 0x00003198 |
| C/C++/Java Escape | \u3198 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Ideographic |
| East Asian Width | Wide |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "下" U+4E0B CJK Unified Ideograph-# |
| NFKC Simple Casefold | "下" U+4E0B CJK Unified Ideograph-# |
| Script | Common |
| Script Extensions | Han |
| Indic Syllabic Category | Other |
| Vertical Orientation | Upright |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |