spinning top vs peg top

spinning top and peg top both are nouns.

Word	Noun	Adjective	Verb	Adverb
spinning top	Yes	No	No	No
peg top	Yes	No	No	No

As nouns, peg top is a hyponym of spinning top; that is, peg top is a word with a more specific, narrower meaning than spinning top:

spinning top: a conical child's plaything tapering to a steel point on which it can be made to spin
peg top: a pear-shaped top made of wood with a metal center pin

Other hyponyms of spinning top include humming top, whip top, whipping top.

spinning top (noun)	peg top (noun)
a conical child's plaything tapering to a steel point on which it can be made to spin	a pear-shaped top made of wood with a metal center pin