Firstborn has 4 different meanings across 2 categories:
Noun
· Adjective
Noun
1
the offspring who came first in the order of birth
2
The first child to be born to a parent or family.
Adjective
1
first in order of birth
"the firstborn child"
2
Born as the first one in a family, flock or the like.
Broader Terms (hypernyms)