誕生石

1. Origins, structure, and basic meaning

• Structure: 誕生石(たんじょうせき) means a gemstone associated with one's birth month.
• Basic usage: It is used for giving a birthstone ring or asking about the stone associated with a particular month.

2. Common pitfalls and similar expressions

• The reading of 石 in this word
  • In this compound, 石 is read せき. Instead of substituting the independent noun reading 石(いし), learn the whole word as たんじょうせき.