firstborn
first-born
noun
The eldest child in a family, often the first son or daughter.
"Their firstborn son was very clever."
adjective
Being the eldest child born to a set of parents.
"She was their firstborn daughter."
first-born
The eldest child in a family, often the first son or daughter.
"Their firstborn son was very clever."
Being the eldest child born to a set of parents.
"She was their firstborn daughter."