pellet vs ball

pellet and ball both are nouns.

Word	Noun	Adjective	Verb	Adverb
pellet	Yes	No	No	No
ball	Yes	No	Yes	No

As nouns, ball is a hyponym of pellet; that is, ball is a word with a more specific, narrower meaning than pellet:

Other hyponyms of pellet include BB, BB shot, bird shot, buckshot, duck shot, grape, grapeshot, musket ball.

As nouns, ball is a hypernym of pellet; that is, ball is a word with a broader meaning than pellet:

Other hypernyms of pellet include globe, orb.

pellet (noun)	ball (noun)
a solid missile discharged from a firearm	a pitch that is not in the strike zone
a small rounded mass of a substance	a ball game played with a bat and ball between two teams of nine players; teams take turns at bat trying to score runs
	round object that is hit or thrown or kicked in games
	a spherical object used as a plaything
	a solid projectile that is shot by a musket
	a more or less rounded anatomical body or mass
	one of the two male reproductive glands that produce spermatozoa and secrete androgens
	a lavish dance requiring formal attire
	a compact mass
	an object with a spherical shape

pellet (verb)	ball (verb)
	form into a ball by winding or rolling
	to live very well