As verbs the difference between study and school
is that
study is (usually|academic) to revise materials already learned in order to make sure one does not forget them, usually in preparation for an examination while
school is (of fish) to form into, or travel in a school or
school can be to educate, teach, or train (often, but not necessarily, in a school).
As nouns the difference between study and school
is that
study is (
label) a state of mental perplexity or worried thought while
school is a group of fish or a group of marine mammals such as porpoises, dolphins, or whales or
school can be (us|canada) an institution dedicated to teaching and learning; an educational institution.