oねえneeさんsanoねえneeさんsan
1.

A respectful term for one's elder sister, used to address or refer to her in a polite manner, often indicating a close familial bond.

2.

A term used to refer to young women in a friendly or casual way, conveying a sense of familiarity and affection.

3.

A conventional way to address a waitress or a female staff member in establishments like inns or restaurants, indicating a degree of politeness.

4.

A term that older siblings use when referring to themselves in relation to their younger siblings, showcasing a sense of care or mentorship.

Example:

あなたのお姉さんは審美感があるね。