firstborn

[ furst-bawrn ]
/ ˈfɜrstˈbɔrn /

adjective

first in the order of birth; eldest.

noun

a firstborn child.
a first result or product.

Origin of firstborn

Middle English word dating back to 1300–50; see origin at first, born

Example sentences from the Web for first-born

British Dictionary definitions for first-born

first-born

adjective

eldest of the children in a family

noun

the eldest child in a family