Consisting of fine particles. / Having a fine, smooth texture. / (figuratively) Highly detailed.

An exact skill that needs practice to perfect. / singular of fine arts

The purely aesthetic arts, such as music, painting, and poetry, as opposed to industrial or functional arts such as engineering or carpentry.

(transitive) To make small adjustments to (something) until it is optimal.

Used other than figuratively or idiomatically: see cut, it, fine. / (idiomatic, UK) To achieve something at the last possible moment, or with no margin for error.

(idiomatic) A difference, albeit vague and difficult to discern.

(idiomatic) The details, restrictions, terms, or conditions, especially of a contract, often printed in very small type.

Misunderstanding of fine-tooth(ed) comb.

To be too precise.

Conventional response to "how are you?", indicating that one is well.