C’est un bain qui chauffe = There is a shower coming on.
[When it feels close, or when the sun is seen for a few minutes through the clouds, it is looked upon as a sign of rain.]
Ce n’est pas pour vous que le four chauffe = All these preparations are not for you.
Chausser
Les cordonniers sont les plus mal chaussés = The shoemaker’s wife goes the worst shod.
Chauve
Chauve comme mon genou (fam.) = As bald as a coot, as a billiard ball.
Chef
Elle a une grande fortune de son chef = She has a large fortune in her own right.
Faire une chose de son chef = To do a thing on one’s own responsibility.