It's pretty much the same thing:
An "omelette/omelet": a meal made form beaten eggs
l'omelette (it's the same word in English) It means "an omelette"
un fantôme is a ghost in English.
'un renne' is called a reindeer in English.
Un chapeau (masc.) is 'a hat' in English.
Un fils (masc.) is a son in English.
un chapeau (masc.) is a hat in English.
Un sac (masc.) means a bag in English.
omelette du fromage - cheese omelette
un tabier doesn't mean anything, un tablier means un apron
un mois - a month
a cake - un gâteau
un cheval - a horse