Rire *Rira bien qui rira le dernier = They have most to laugh at who laugh last; Let them laugh that win.
Rire dans sa barbe (or, sous cape) = To laugh in one’s sleeve.
Bossu Rire comme un bossu = To split one’s sides with laughter.
Toi qui a le coeur gai; Tu as le coeur a rire Mai j' l' ai-t-a pleurer.
As to theories, we must agree with Voltaire when he said "En fait de systeme, il faut toujours se reserver le droit de rire le lendemain de ses idees de la veille.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "rire" in a variety of sentences. We hope that you will now be able to make sentences using this word.