This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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verb-intransitive. To twitter or chatter, as a bird.

v. To make a series of high-pitched sounds; to twitter, chirp or chatter.

v. To shiver or chatter with cold.

verb-intransitive. To chirp in a tremulous manner, as a bird.

verb-intransitive. To shiver or chatter with cold.

To chirp; twitter.

To shiver; shake, as with cold.

To chatter.

n. In coalmining, a seam of coal separated from another by a thin band of shale or clay.

n. A thin stratum of clay ironstone.

n. The chattering or twittering of birds.

v. make high-pitched sounds, as of birds

"The moment his eyes fell upon madam of the fluffy hair, he burst out with a loud, rapid woodpecker "chitter," gradually growing higher in key and louder in tone."

chittered    chittering    chitters   

chirp    chirrup    peep    cheep   

Ritter    Sitter    aglitter    bitter    critter    embitter    emitter    fitter    fritter    gitter   

tap-tap-tap    awayfrom    declaim    free-and-easiness    chirring    guardhouse    arrangement    tea-drinking    collocation    thanswahili'