develop vs refine

develop and refine both are verbs.

Word	Noun	Adjective	Verb	Adverb
develop	No	No	Yes	No
refine	No	No	Yes	No

As verbs, refine is a hypernym of develop; that is, refine is a word with a broader meaning than develop:

develop: elaborate by the unfolding of a musical idea and by the working out of the rhythmic and harmonic changes in the theme
refine: make more complex, intricate, or richer

Other hypernyms of develop include complicate, elaborate, rarify.

develop (verb)	refine (verb)
come to have or undergo a change of (physical features and attributes)	reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities
grow, progress, unfold, or evolve through a process of evolution, natural growth, differentiation, or a conducive environment	improve or perfect by pruning or polishing
cause to grow and differentiate in ways conforming to its natural development	treat or prepare so as to put in a usable condition
happen	attenuate or reduce in vigor, strength, or intensity by polishing or purifying
change the use of and make available or usable	make more precise or increase the discriminatory powers of
be gradually disclosed or unfolded; become manifest	make more complex, intricate, or richer
gain through experience
become technologically advanced
grow emotionally or mature
expand in the form of a series
elaborate by the unfolding of a musical idea and by the working out of the rhythmic and harmonic changes in the theme
create by training and teaching
elaborate, as of theories and hypotheses
move into a strategically more advantageous position
move one's pieces into strategically more advantageous positions
superimpose a three-dimensional surface on a plane without stretching, in geometry
work out
make something new, such as a product or a mental or artistic creation
generate gradually
make visible by means of chemical solutions
come into existence; take on form or shape