右みぎ大だい括かっ弧こ

Meanings

1

noun

closing bracket; right square bracket

computing

Specifically refers to the right square bracket character ']' used in computing and programming.

arc, arch, bow

左ひだり大だい括かっ弧こ
Refers to the left square bracket '['; 右大括弧 is the right counterpart ']'.
括かっ弧こ
General term for brackets or parentheses; 右大括弧 specifies the right square bracket.

Compound of 右 (right), 大 (large), and 括弧 (bracket). The term describes the right-facing large bracket used in computing.