Un
Ne faire ni une ni deux = To make no bones about it; To make up one’s mind quickly.
C’est tout un = It is all the same.
Union
L’union fait la force = United we stand, divided we fall.
Usine
Ce ne sont que des usines à bachot (pop.) = They are mere cramming shops.
[Bachot = baccalauréat = matriculation. The French equivalent for our B.A. is rather licencié-ès-lettres, although the examinations in the two countries are so different that any comparison is very difficult.]