Noun
Used other than figuratively or idiomatically: see only, daughter.
She is the only daughter working.
The sole female among siblings.
Source: en.wiktionary.orgYou can hardly imagine that I and Lord Bracknell would dream of allowing our only daughter - a girl brought up with the utmost care - to marry into a cloak-room, and form an alliance with a parcel? Oscar Wilde
Well, I think it's because I'm an only daughter. I have four brothers, a bunch of guy cousins, and so it's like I was raised amongst men. So I've always gotten along really well with men. Alicia Machado
Katherine Sedley was the only daughter and heiress to the libertine poet Sir Charles Sedley, and grew into a thoroughly scandalous lady in her own right. Susan Holloway Scott