坊主

1. Origins, structure, and basic meaning

• Structure: 坊主 (ぼうず) can denote a Buddhist monk or, in haircut context, a closely shaved head.
• Basic usage: It can identify a young monk at a temple or describe the haircut of someone who shaves their head.

2. Common pitfalls and similar expressions

• A monk versus a shaved hairstyle
  • Temple context points to the person, while language about shaving or hair points to the hairstyle sense of 坊主.