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First in order of birth; born first.
The child in a family who is born first.



1. first in the order of birth; eldest.
2. a firstborn child.
3. a first result or product.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.firstborn - the offspring who came first in the order of birth
offspring, progeny, issue - the immediate descendants of a person; "she was the mother of many offspring"; "he died without issue"
Adj.1.firstborn - first in order of birth; "the firstborn child"
first - preceding all others in time or space or degree; "the first house on the right"; "the first day of spring"; "his first political race"; "her first baby"; "the first time"; "the first meetings of the new party"; "the first phase of his training"


n. primogénito-a.
References in classic literature ?
To you little Gazan might have seemed a hideous and repulsive creature, but to Taug and Teeka he was as beautiful and as cute as is your little Mary or Johnnie or Elizabeth Ann to you, and he was their firstborn, their only balu, and a he--three things which might make a young ape the apple of any fond father's eye.
It is the voice of my firstborn, calling aloud for justice
Compared to firstborn baby boomers who were socialized by adults, later-borns may have been more resistant to the authority of government and other institutions, and therefore more willing to protest against authority (Carlson & Kangun, 1988).
Rarely does the firstborn name its parents, but when the Surrealists first played a sort of parlor game in 1925, it resulted in the sentence "The exquisit corpse will drink the new wine," and ever since the game has been known as the Cadavre Exquis.
Subjects were 144 pairs of firstborn and secondborn siblings classified according to maternal perceptions into one of four groups: both gifted, firstborn gifted, secondborn gifted, or neither gifted.
Actress Amanda Tapping, star of Sci Fi's most popular series "Stargate SG-1" and her husband, builder Alan Kovacs are thrilled to welcome their firstborn child, a baby girl.
Bookmakers Coral have started taking wagers on the name of Simon Cowell's firstborn child - and there's already a frontrunner.
FIRSTBORN has become an aficionado of a fast-growing but still little-known sport called slacklining.
London, Oct 16 (ANI): Queen Elizabeth II is personally in favour of the plan that repeal ancient laws and allows the firstborn daughter of Prince William and Kate to accede to the throne, according to reports.
Firstborn develops multi-platform user experiences that extend across all media platforms, including web, mobile, broadcast and digital out-of-home.
The pressure put on oldest children means that almost half (45%) of the mothers questioned said that they thought their firstborn would be the most likely to suffer from anxiety or depression, compared to just 6% who said their youngest child was most likely to face this in life.
Or you could call him an expectant father hoping to establish a trust fund for his firstborn.