Better
Part of speech: adjective
Definition: Greater in amount or quantity
Part of speech: adverb
Definition: (manner) Accurately, competently, satisfactorily.
Part of speech: verb
Definition: To improve.
Part of speech: noun
Definition: An entity, usually animate, deemed superior to another. An entity, usually animate, deemed superior to another; one who has a claim to precedence; a superior.
Example sentence: Good, better, best. Never let it rest. 'Til your good is better and your better is best.
Finer
Part of speech: adjective
Definition: Senses referring to subjective quality.
Example sentence: There is something that is much more scarce, something finer far, something rarer than ability. It is the ability to recognize ability.