This word, besides its natural and proper sense, is used to designate, A niece or any female descendant (Genesis 20:12; 24:48; 28:6).
Women as natives of a place, or as professing the religion of a place; as, "the daughters of Zion" (Isaiah 3:16), "daughters of the Philistines" (2 Samuel 1:20).
Small towns and villages lying around a city are its "daughters," as related to the metropolis or mother city. Tyre is in this sense called the daughter of Sidon (Isaiah 23:12).
The people of Jerusalem are spoken of as "the daughters of Zion" (Isaiah 37:22).
The daughters of a tree are its boughs (Genesis 49:22).
The "daughters of music" (Eccl 12:4) are singing women.
Source: Easton's Bible Dictionary
Daughter
DAUGHTER, n,
Source: King James Dictionary
Daughter
The word is used in Scripture not only for daughter, but for granddaughter or other female descendant. (Genesis 24:48) It is used of the female inhabitants of a place or country, (Genesis 6:2; Luke 23:28) and of cities in general, (Isaiah 10:32; 23:12) but more specifically of dependent towns or hamlets, while to the principal city the correlative "mother" is applied. (Numbers 21:25) "Daughters of music," i.e. singing birds, (Ecclesiastes 12:4) refers to the power of making and enjoying music.