Squared hiragana from ARIB STD B24
Squared ideographs and kana from ARIB STD B24
Ideographs with tortoise shell brackets from ARIB STD B24
Symbols for Chinese folk religion
Enclosed Ideographic Supplement is a Unicode block containing characters for compatibility with the Japanese ARIB STD-B24 standard. It contains a squared kana word, and many CJK ideographs 4E00–9FFF enclosed with squares, brackets, or circles.