Most common:
* Obirin ile ọba (òbírin ilé ọ̀bá): This literally means "woman of the king's house" and is the most common way to refer to a queen.
More specific:
* Iyalode: This word refers to a queen mother or a high-ranking woman in a Yoruba community.
* Obirin Aafin: This means "queen of the palace" and is used specifically for the king's wife.
Less common:
* Olori: This word literally means "head" and can be used to refer to a queen, but it's less common than the other options.
The best choice depends on the specific situation and the level of formality you're aiming for.