Crier comme un aveugle (qui a perdu son bâton or, son chien) = To yell with all one’s might.
[A variant is: Crier comme un sourd, although deaf people generally speak very quietly.]
Il est toujours du bon avis = His opinion is always good.
Il y a jour d’avis = There is no hurry; There is plenty of time for consideration.
*Avis au lecteur = A note to the reader; A word to the wise; Verb. sap.
(Il) m’est avis qu’il cherche à vous tromper = Somehow I think he wants to deceive you.
*Deux avis valent mieux qu’un = Two heads are better than one.
[The Greeks said: εἷς ἀνήρ, οὐδεὶς ἀνήρ = One man, no man.]
Sauf avis contraire = Unless I hear (or, write) to the contrary.