Oxford Dictionary English paternity suit nounnoun BrE BrE//pəˈtɜːnəti suːt// , BrE//pəˈtɜːnəti sjuːt// ; NAmE NAmE//pəˈtɜːrnəti suːt// (also paternity case) Add to my wordlistjump to other resultsa court case that is intended to prove who a child’s father is, especially so that he can be ordered to give the child financial supportSee paternity suit in the Oxford Advanced American DictionaryCheck pronunciation: paternity suit oxfordlearnersdictionaries.com