仲良し

1. Origins, structure, and basic meaning

• Structure: 仲良し is read as なかよし and is a noun describing people who are on very good terms or a person with whom one is close.
• Basic usage: Stating a close relationship appears in 二人は仲良しだ, while an old close friend appears in 仲良しの友達.

2. Common pitfalls and similar expressions

• Relationship and person
  • 仲良しだ states that people get along well, while 仲良し used of a person can mean someone with whom one is close.
• Difference from 友達
  • 友達 broadly identifies a friend, while 仲良し emphasizes the particular closeness of people who spend time together and get along well.