1.daughter的意思是“女儿; 闺女”,指某一家庭的女性后裔,是可数名词。
2.daughter用于比喻意义时表示“产物; 自起源或出身衍生而来的事物”。

daughter language
从另一种语言派生出来的语言 language derived from another one
In many ways Italian is a daughter language of Latin.从很多方面看,意大利语是从拉丁语中派生出来的一种语言。

My daughter is capable of working much harder.我女儿工作很认真。
Ruth was a daughter of Abraham.露丝是亚伯拉罕的女儿。
Jim worships his daughter and will do anything she wants, she can wind him around her little finger.吉姆十分钟爱他的女儿,对她有求必应,她可以随意支使他。
Although their daughter is in her early twenties, they still treat her as a child.虽然他们的女儿已经20出头,可是他们还把她当作小孩。
The mother dressed her daughter up like a princess.那位母亲把她女儿打扮得像个公主。
Mr. and Mrs. Jones have three daughters.琼斯夫妇有三个女儿。
That old man lives on the earnings of his daughter.那个老人靠他女儿的收入维持生活。
Mrs. Smith always sits up for her daughter no matter how late it may be.不管多晚,史密斯夫人总是不睡觉等候女儿回来。
She glanced through her daughters homework and signed it.她把女儿的作业浏览了一遍并签了字。
The deceased willed his vast estate to his daughter.死者把大量遗产遗留给他的女儿。
The United States is a daughter of Great Britain.美国是大不列颠的女儿。
French is a daughter of Latin.法语源于拉丁语。
Radon is the daughter of radium.氡是镭的子体。

下面两个句子意思不同:
She is daughter of my teacher.
她与我的老师是父女关系。
She is a daughter of my teacher.
她是我的老师的女儿。
前者表示“关系”,后者表示“所属”,前者是零冠词,后者有不定冠词a。

［词源］ ＜古英语dohtor(女儿)