spinster

"My neighbor, a cheerful spinster, tends her garden every morning with great care"

"The spinster lived alone with her cats and books"

"Don't call her a spinster; she prefers to be known for her career achievements"

"The old spinster felt a pang of loneliness as she watched families gather for the holidays"

"Why does everyone assume a woman must be a spinster if she isn't married by thirty?"