- privileges or possessions that a person has or is believed to be entitled to as soon as he is born
- the privileges or possessions of a first-born son
- inheritance; patrimony
WordReference Random House Learner's Dictionary of American English © 2015
any right or privilege which a person should have because of being born: [countable]Some see basic necessities, housing, and health care as a birthright.[uncountable]By birthright you are entitled to respect.