A female child in relation to her parents.

Countable noun. Plural: daughters. Note the silent 'gh' — daughter is pronounced /ˈdɔː.tər/, not 'dag-ter'. Common collocations: eldest daughter, youngest daughter, daughter-in-law (your son's wife).

The phrase 'like mother, like daughter' means that a daughter is very similar to her mother in behaviour or appearance. 'Daughter tongue' is sometimes used poetically to describe a language that developed from an older one.