English is the same as French, "restaurant".
You should write French with a capital letter, so French restaurant is correct.
restaurant is French, but you pronounce it like restauran. (without the t)restaurant like you
Un restaurant francais.
Au restaurant
A seaside restaurant is 'un restaurant de bord de mer' in French.
'Un restaurant' is a masculine noun in French.
restaurant français
Mon restaurant (pronounce mon rest-oh-ron)
"Le Restaurant Francais de Martin" literally.
It is a French word, so "un restaurant" (masc.)
Restaurant is a French word.
un restaurant (masc.)