English Theasurus that shows all the ways the English word is translated from the original Greek and Hebrew.
English Theasurus from the Hebrew and Greek Strong's Dictionary
firstborn 1060 -- b@kowr -- eldest (son), {firstborn}(-ling).
firstborn 1062 -- b@kowrah -- birthright, {firstborn}(-ling).
firstborn 1067 -- bekiyrah -- {firstborn}.
firstborn 1069 -- bakar -- make {firstborn}, be firstling, bring forth first child(new fruit).
firstborn 1121 -- ben -- + afflicted, age, [Ahoh-] [Ammon-] [Hachmon-] [Lev-]ite,[anoint-]ed one, appointed to, (+) arrow, [Assyr-] [Babylon-] [Egypt-][Grec-]ian, one born, bough, branch, breed, + (young) bullock, + (young)calf, X came up in, child, colt, X common, X corn, daughter, X of first, +{firstborn}, foal, + very fruitful, + postage, X in, + kid, + lamb, (+)man, meet, + mighty, + nephew, old, (+) people, + rebel, + robber, Xservant born, X soldier, son, + spark, + steward, + stranger, X surely,them of, + tumultuous one, + valiant[-est], whelp, worthy, young (one),youth.