穂先

1. Origins, structure, and basic meaning

• Structure: 穂先 is read ほさき and means the tip of an ear of grain or the tip of a brush's bristles.
• Basic usage: It is used for dew at the tip of a grain ear or for shaping a brush tip.

2. Common pitfalls and similar expressions

• The whole and its tip
  • For grain, 穂 refers to the ear, while 穂先 focuses on its tip. 筆の穂先 refers to the end of the brush's bristles that makes the writing or line.