| noun | the act of moving back and forth |
| 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” |
| 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” |
| verb | wink briefly “bat one's eyelids” |
| waver | verb | move hesitatingly, as if about to give way |
| flutter | verb | move back and forth very rapidly |
| flicker | verb | move back and forth very rapidly |
| flap | verb | move with a flapping motion |
| flit | noun | a sudden quick movement |
| flutter | noun | the act of moving back and forth |
| dart | noun | a sudden quick movement |
| flicker | noun | the act of moving back and forth |
| waver | noun | the act of moving back and forth |
| fluttering | noun | the motion made by flapping up and down |
| palpitant | adjective | having a slight and rapid trembling motion |
| palpitation | noun | a rapid and irregular heart beat |