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paternity + noun
paternity 作定语时修饰名词，如 paternity leave（陪产假）、paternity test（亲子鉴定）。
He is on paternity leave this week.
他这周在休陪产假。
父亲身份
paternities — plural of paternity
先理解核心含义，再看它在真实句子里的用法。
父亲身份
the state of being a father
He is on paternity leave this week.
他这周在休陪产假。
父亲身份；父性
Fatherhood, the state or quality of being a father.
父系血统
Parental descent from a father.
法律上确认男子为某孩子父亲的身份
Legal acknowledgement of a man's fatherhood of a child.
作者身份；出处
Authorship.
He acknowledged paternity of the child in court.
他在法庭上承认了自己是这个孩子的父亲。
They had a DNA test to establish paternity.
他们做了DNA检测以确定亲子关系。
She kept the details of his paternity a secret.
她对他父亲身份的细节保密。
paternity 作定语时修饰名词，如 paternity leave（陪产假）、paternity test（亲子鉴定）。
He is on paternity leave this week.
他这周在休陪产假。
establish paternity 和 acknowledge paternity 是正式用语，分别指确认和承认亲子关系。
The DNA test established paternity.
DNA检测确认了父亲身份。
表示“某人的父亲身份”时用 of 短语，如 paternity of the child。
He admitted paternity of the child.
他承认是孩子的父亲。
Not this
My paternity is a teacher.
Use this
My father is a teacher.
paternity 是抽象名词，意为“父亲身份”，不能指“父亲（人）”。要表示某个人是父亲，须用 father。
Not this
My father took two weeks of maternity leave.
Use this
My father took two weeks of paternity leave.
maternity 指“母亲身份”，paternity 指“父亲身份”。父亲休的陪产假应为 paternity leave，不能误用 maternity leave。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
陪产假
He took two weeks of paternity leave after his daughter was born.
女儿出生后，他休了两周陪产假。
亲子鉴定
A paternity test confirmed that he was the father.
亲子鉴定证实他就是孩子的父亲。
亲子确认诉讼
She filed a paternity suit to get child support.
她提起了亲子确认诉讼，以争取子女抚养费。
确认父亲身份
The mother wants to establish paternity for her child.
母亲想确认孩子的父亲身份。
父亲权利
He fought for his paternity rights after the divorce.
离婚后，他为自己的父亲权利而斗争。
父亲身份欺诈
The law treats paternity fraud as a serious offense.
法律将父亲身份欺诈视为严重罪行。
陪产假
He took two weeks of paternity leave after the baby was born.
孩子出生后，他休了两周陪产假。
亲子鉴定
The court ordered a paternity test to determine the child's father.
法院下令做亲子鉴定以确定孩子的父亲。
确认父子关系的诉讼
She filed a paternity suit against the alleged father.
她对被指认的父亲提起了确认父子关系的诉讼。
谚语：生母是事实，生父是看法。常用来强调，谁生下孩子是明确的事实，而父亲身份往往取决于社会或法律认定。
The court ordered a paternity test to confirm the identity of the child's father.
法院下令做亲子鉴定，以确认孩子的父亲是谁。
Use paternities naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
对比 maternity（母性）记忆：把 m 换成 p，paternity 就是父亲身份。
语域：formal 常见场景：法律文件、亲子鉴定、正式报道 paternity 较正式，多用于法律、医学或官方场合，如确认父亲身份或亲子鉴定；日常口语中较少用，常以 fatherhood 替代。
与 paternity 押韵的词：maternity、fraternity、eternity，均以 /ˈtɜːnəti/ 结尾。注意拼写相似的 paternal /pəˈtɜːnəl/、pattern /ˈpætən/、patriotic /ˌpeɪtriˈɒtɪk/ 发音不同。
Dictionary facts from ECDICT, WIKTIONARY.