牙

1. Origins, structure, and basic meaning

• Structure: 牙, read きば, is a single noun for an animal's long, sharply developed tooth.
• Basic usage: 狼の牙 means sharp fangs, while 象の牙 means long tusks.

2. Common pitfalls and similar expressions

• Distinguishing meanings
  • It denotes protruding, formidable animal teeth and differs in scope from ordinary human teeth 歯.