16.兒子、女兒 -- Son,Daughter

兒--er
ㄦˊ
a child
son
a "suffix" placed after many commonly used nouns to avoid employing one-syllable terms in speech

子--zi
ㄗˇ
a son
a person
seed
an egg
a "suffix" for a small piece
an unaccentuated "suffix" for commonly used one syllable nouns
the first of the twelve Earthly Branches which the ancients used to denote years, months, and days in combination with the ten Heavenly Stems

女--nV
ㄋㄩˇ
a female; a girl; a woman


兒子--er zi
ㄦˊ ㄗ˙
a son; a boy

女兒--nV er
ㄋㄩˇ ㄦˊ
a daughter