Meanings
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1
verb
to make a rapid series of light, high-pitched chirping sounds, especially as a bird
Sparrows twitter in the hedge before sunrise.
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2
noun
a rapid series of light chirps or similar high-pitched sounds
The twitter of swallows echoed beneath the bridge.
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3
verb
to talk rapidly in a light, excited, or nervous voice
Guests twittered excitedly about the surprise announcement.
Thesaurus
Etymology
From Middle English twiteren, probably an imitative Germanic formation that echoes a bird's repeated calls. It is cognate with Low German twitteren and German zwitschern. The human-speech sense arose by comparing light, rapid talk with birdsong.