bundle

1. Origins, structure, and basic meaning

• Structure: 束 has 7 strokes and refers to several things gathered into a bundle.
• Basic usage: 束, a bundle or bunch, is read たば, while 約束, a promise, is read やくそく.

2. Common pitfalls and similar expressions

• Bundled objects and an agreed action
  • 手紙の束 means a bundle of letters. The preceding noun identifies what has been gathered.
  • 遊ぶ約束をした means making a promise to play together. 遊ぶ states the content of the promise.