Your sister's or brother's son would be your nephew, and your sister's or brother's daughter would be your niece. or nephew
Neifew
uswhjxnd
Nieces
Niece
Niece
Aunti
Gonedince
⁴niece
Mare
Niece would be an opposite as a niece is female and a nephew is male.
The feminine opposite of nephew is niece.
niece
lass/lad - dog/bitch - niece/nephew - fiance/fiancee - tiger/tigress - nun/priest - count/countess - master/mistress
Clot is not gender specific.
NIECE
Niece would be an opposite as a niece is female and a nephew is male.
neice
Niece would be an opposite as a niece is female and a nephew is male.
The feminine opposite of nephew is niece.
The opposite relationship of uncle would be Niece or Nephew.(The opposite gender is aunt.)
The opposite gender of a monk (male) would be a nun (female).Nun
Landlady.
You can call them their real name...or...niece
niece
niece
lass/lad - dog/bitch - niece/nephew - fiance/fiancee - tiger/tigress - nun/priest - count/countess - master/mistress