one or a (masculine)
un sac is a bag in French.
un four is an oven in French
"un bus" is a bus in French.
un survêtement is a tracksuit in French.
un crâne is a skull in French.
"un crayon" (masc.) is a pencil in French.
"J'ai un" in French translates to "I have a" in English.
un serpent is a snake in French.
Un polo (masc.) is a polo shirt in French.
un poussin is the name for the chicklet in French.
un jean in french means jeans in english
"un deux trois" means 'one two three' in French.