Someone who's described as eldest in their family was born first. Your eldest sister is the oldest one.
Oldest; longest in duration.
Noun
the offspring who came first in the order of birth
Adjective S.
first in order of birth; "the firstborn child"
a.
Oldest; longest in duration.
a.
Born or living first, or before the others, as a son,
daughter, brother, etc.; first in origin. See Elder.
Eldest
Their eldest historians are of suspected credit.
Oldest; longest in duration.
Usage Examples
Well, when you're the youngest of five, parents kind of lose interest more and more through the children. I think my eldest brother was under loads of pressure to do something amazing with his life, but by the time I came around they were like, 'Well, let's hope he doesn't kill a guy.'
Misspelled FormEldest, Eldest, ldest, Eldest, Ekldest, Eoldest, Epldest, E:ldest, Ekdest, Eodest, Epdest, E:dest, Elkdest, Elodest, Elpdest, El:dest, Elsdest, Eledest, Elfdest, Elxdest, Elcdest, Elsest, Eleest, Elfest, Elxest, Elcest, Eldsest, Eldeest, Eldfest, Eldxest, Eldcest, Eldwest, Eld3est, Eld4est, Eldrest, Eldsest, Elddest, Eldwst, Eld3st, Eld4st, Eldrst, Eldsst, Elddst, Eldewst, Elde3st, Elde4st, Elderst, Eldesst, Eldedst, Eldeast, Eldewst, Eldeest, Eldedst, Eldexst, Eldezst, Eldeat, Eldewt, Eldeet, Eldedt, Eldext, Eldezt, Eldesat, Eldeswt, Eldeset, Eldesdt, Eldesxt, Eldeszt, Eldesrt, Eldes5t, Eldes6t, Eldesyt, Eldesgt, Eldesr, Eldes5, Eldes6, Eldesy, Eldesg, Eldestr, Eldest5, Eldest6, Eldesty, Eldestg.
Other Usage ExamplesLight, God's eldest daughter, is a principal beauty in a building.
I'm not a good father and they're not children any more the eldest is in his fifties. My relationship with their mothers broke down and, because of what the law was, they went with their mothers and were imbued with their mothers' morality in life and they were not my people any more.