おば伯母obaさんsanおば叔母obaさんsan
1.
A term used to refer to one's father's or mother's sister with respect and affection.
2.
A polite way to address or refer to an aunt, acknowledging her role in the family and often used in a familiar context.
3.
A word that denotes a female relative who is not a direct parent, often associated with nurturing and familial support.
Example:
叔母さんを訪ねた時はすごいごちそうだったね。