Coveralls is a derived term of all.
As nouns the difference between coveralls and all
is that
coveralls is (us) a coverall while
all is (with a possessive pronoun) everything possible.
As a adverb all is
(degree) (
intensifier).
As a determiner all is
every individual or anything of the given class, with no exceptions (the noun or noun phrase denoting the class must be plural or uncountable).
As a conjunction all is
(obsolete) although.