Un fils (masc.) is a son in English.
Mon fils veut un ballon vert. = My son wants a green balloon.
un fils unique mean the only son
a son -> un fils (rhymes with "peace" in English)
Mon fils means "my son" in English.
Mon fils veut un ballon vert! in French is "My son wants a green ballon!" in English.
a son (English) > un fils (French)un son (French) > a sound, a noise (English)
Oui, c'est un bon fils means ""yes, he's a good son".
if you mean - un fils, it means a son
"Cher fils" means "dear son" in English.
"Mes fils" means "my sons" in English.
un beau-fils is a son-in-law in French. It is also the noun for a step-son.
"Je suis fils unique" in French translates to "I am an only child" in English.