1. A living language

2. A dead language 

1. une langue vivante

2. une langue morte 

1. A cultivated language

2.  A vulgar language

3. A popular/common language

1. Un langage cultivé

2.  Un langage vulgaire

3. Un langage populaire

To murder French

(i.e. to speak French like a Spanish cow) 

1. To speak softly

2. To speak loudly 

1. Parler bas

2. Parler fort 

1. to improve one's accent

2. to improve one's French 

1. Perfectionner son accent

2. Perfectionner son français

To be a polyglot

(to speak many languages)