Definition of fine:
of superior quality; of a particular grade of quality, usually between very good and very fine, and below mint
"the tree frog that they encountered was truly a fine specimen."
expression of agreement; to make finer, purer, or cleaner
"she was fined a thousand dollars for littering, but she appealed."
(usually plural) something that is fine; fine particles; a payment
issued as punishment
for breaking the law
"they filtered silt and fines out of the oil."