flutter vs tumult

flutter and tumult both are nouns.

Word	Noun	Adjective	Verb	Adverb
flutter	Yes	No	Yes	No
tumult	Yes	No	No	No

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

flutter (noun)	tumult (noun)
the act of moving back and forth	the act of making a noisy disturbance
the motion made by flapping up and down	violent agitation
abnormally rapid beating of the auricles of the heart (especially in a regular rhythm); can result in heart block	a state of commotion and noise and confusion
a disorderly outburst or tumult

flutter (verb)	tumult (verb)
wink briefly
beat rapidly
move back and forth very rapidly
move along rapidly and lightly; skim or dart
flap the wings rapidly or fly with flapping movements