flutter
noun.
the act of moving back and forth
Synonym: flicker, waver
noun.
abnormally rapid beating of the auricles of the heart (especially in a regular rhythm); can result in heart block
noun.
a disorderly outburst or tumult
they were amazed by the furious disturbance they had caused
noun.
the motion made by flapping up and down
verb.
move along rapidly and lightly; skim or dart
The hummingbird flitted among the branches
Synonym: dart, fleet, flit
verb.
move back and forth very rapidly
the candle flickered
verb.
flap the wings rapidly or fly with flapping movements
The seagulls fluttered overhead
verb.
beat rapidly
His heart palpitated
Synonym: palpitate
verb.
wink briefly
bat one's eyelids
Synonym: bat