王太子妃 (おうたいしひ) Japanese meaning | Kotomora- 王太子
王太子 means crown prince, while 王太子妃 specifically refers to his wife, the crown princess.
- 皇太子妃
皇太子妃 is used for the crown princess of an empire (e.g., Japan), while 王太子妃 is for a kingdom.
Etymology
Compound of 王太子 (crown prince) and 妃 (princess, consort).