飼い犬

1. Origins, structure, and basic meaning

• Structure: Spelling: 飼い犬. Reading: かいいぬ. Core meaning: pet dog.
• Basic usage: Representative examples: 飼い犬と毎朝川沿いを散歩している / 玄関を開けると、飼い犬が尻尾を振って迎えた.

2. Common pitfalls and similar expressions

• Owned dog versus stray
  • 飼い犬 is a dog kept and cared for by a person at home. It differs in care and ownership from 野良犬, a stray dog.