mon cadeau means my present / my gift in French
Où est mon cadeau?
Un cadeau translates to a gift in English.
It means- a gift
if you mean gift, it is cadeau
"Cadeau" is masculine in French.
Cadeau is from the French meaning a gift or present.
A little gift is 'un petit cadeau' (masc.) in French.
mon Dieu means 'my God' in French.
A small gift, a present.
'mon fils' means 'my son' in French.
Masculine: un cadeau / le cadeau
The "Un" is masculine, if it were feminine it would be "Une".