bundle

1. Origins, structure, and basic meaning

• Structure: 括 has 9 strokes and the on-reading かつ. 括弧 (かっこ) and 一括 (いっかつ) concern enclosing something or handling things together.
• Basic usage: 括弧 names brackets enclosing part of a sentence or expression; 一括 means treating multiple items together at once.

2. Common pitfalls and similar expressions

• A missing bracket and handling things together
  • 括弧で入れてください asks for an additional explanation to be put in parentheses. 閉じる括弧が一つ足りない means that one closing bracket is missing.
  • 写真を一括して describes gathering the photographs together in the same box. 一括払いする means paying the participation fee in one lump sum rather than installments.