heavy vs part

heavy and part both are nouns.

Word	Noun	Adjective	Verb	Adverb
heavy	Yes	Yes	No	Yes
part	Yes	No	Yes	Yes

As nouns, part is a hypernym of heavy; that is, part is a word with a broader meaning than heavy:

Other hypernyms of heavy include character, persona, role, theatrical role.

heavy (noun)	part (noun)
a serious (or tragic) role in a play	the actions and activities assigned to or required or expected of a person or group
an actor who plays villainous roles	the effort contributed by a person in bringing about a result
	something less than the whole of a human artifact
	an item that is an instance of some type
	a line of scalp that can be seen when sections of hair are combed in opposite directions
	one of the portions into which something is regarded as divided and which together constitute a whole
	an actor's portrayal of someone in a play
	that which concerns a person with regard to a particular role or situation
	the melody carried by a particular voice or instrument in polyphonic music
	the extended spatial location of something
	a portion of a natural object
	assets belonging to or due to or contributed by an individual person or group
	something determined in relation to something that includes it

heavy (adjective)	part (adjective)
of comparatively great physical weight or density
marked by great psychological weight; weighted down especially with sadness or troubles or weariness
unusually great in degree or quantity or number
of the military or industry; using (or being) the heaviest and most powerful armaments or weapons or equipment
(physics, chemistry) being or containing an isotope with greater than average atomic mass or weight
of great intensity or power or force
darkened by clouds
(used of soil) compact and fine-grained
(of sleep) deep and complete
lacking lightness or liveliness
characterized by effort to the point of exhaustion; especially physical effort
usually describes a large person who is fat but has a large frame to carry it
full of; bearing great weight
full and loud and deep
large and powerful; especially designed for heavy loads or rough work
slow and laborious because of weight
of great gravity or crucial import; requiring serious thought
dense or inadequately leavened and hence likely to cause distress in the alimentary canal
given to excessive indulgence of bodily appetites especially for intoxicating liquors
in an advanced stage of pregnancy
sharply inclined
made of fabric having considerable thickness
(of an actor or role) being or playing the villain
requiring or showing effort
permitting little if any light to pass through because of denseness of matter
prodigious
of relatively large extent and density

heavy (verb)	part (verb)
	move or break apart
	force, take, or pull apart
	depart for someplace
	go one's own way; move apart
	discontinue an association or relation; go different ways

heavy (adverb)	part (adverb)
slowly as if burdened by much weight	to some extent; in some degree; not wholly