paternity Paternity is the state or fact of being the father of a particular child. FORMAL n-uncount He was tricked into marriage by a false accusation of paternity.
paternity leave
If a man has paternity leave, his employer allows him some time off work because his child has just been born. (BUSINESS) n-uncount
paternity suit (paternity suits plural )If a woman starts or takes out a paternity suit, she asks a court of law to help her to prove that a particular man is the father of her child, often in order to claim financial support from him. n-count