humming top vs teetotum

humming top and teetotum both are nouns.

Word	Noun	Adjective	Verb	Adverb
humming top	Yes	No	No	No
teetotum	Yes	No	No	No

As nouns, teetotum is a hypernym of humming top; that is, teetotum is a word with a broader meaning than humming top:

humming top: a top that makes a humming noise as it spins
teetotum: a conical child's plaything tapering to a steel point on which it can be made to spin

Other hypernyms of humming top include spinning top, top, whirligig.

humming top (noun)	teetotum (noun)
a top that makes a humming noise as it spins	a conical child's plaything tapering to a steel point on which it can be made to spin