(protective headgear): casque, masculine noun (diving headgear): masque, masculine noun (armour): heaume , masculine noun
masculine
"Actriz" is a feminine noun. "Actor" is the masculine.
In French, "sandwich" is a masculine noun. So you would use "un sandwich" for "a sandwich."
Turquoise is a feminine noun and adjective in French. It has no masculine.
masculine
In French, "apricot" (abricot) is a masculine noun.
'un stylo' is a masculine, noun in French. 'stylos' with the additional 's' is a plural noun, but still masculine.
It is a masculine noun
A book is 'un livre' (masculine noun) in French.
"Tenis" (with no acute) is masculine.
Un sandwich is a masculine noun in French.