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: All life is an experiment. The more experiments you make the better.
Meliorate
Part of speech: verb
Definition: To make better, to improve; to heal or solve a problem.