Rabattre le caquet à quelqu’un (pop.) = To take a person down a peg; To stop his jaw; To cut his cackle.
Il n’a pas un radis (fam.) = He has not a brass farthing. (See [Liard].)
Raillerie
Cela passe la raillerie = That is beyond a joke. (See [Entendre].)
Raison
Il n’entend pas raison là-dessus = He will not listen to reason on that point.
Se faire raison à soi-même = To take the law into one’s own hands.
Comme de raison = Rightly enough; As might be expected.
Plus que de raison = More than is reasonable.