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

• Lexulous
• Wordscraper
• Wordosaur

verb-intransitive. To utter a succession of light chirping or tremulous sounds; chirrup.

verb-intransitive. To speak rapidly and in a tremulous manner: twittering over office gossip.

verb-intransitive. To giggle nervously; titter.

verb-intransitive. To tremble with nervous agitation or excitement.

v. To utter or say with a twitter: twittered a greeting.

n. The light chirping sound made by certain birds.

n. A similar sound, especially light, tremulous speech or laughter.

n. Agitation or excitement; flutter.

n. The sound of a succession of chirps as uttered by birds.

v. To utter a succession of bird's chirps.

v. (of a person) To talk in an excited or nervous manner.

v. To use the microblogging service Twitter.

n. One who twits, or reproaches; an upbraider.

verb-intransitive. To make a succession of small, tremulous, intermitted noises.

verb-intransitive. To make the sound of a half-suppressed laugh; to titter; to giggle.

verb-intransitive. To have a slight trembling of the nerves; to be excited or agitated.

v. To utter with a twitter.

n. The act of twittering; a small, tremulous, intermitted noise, as that made by a swallow.

n. A half-suppressed laugh; a fit of laughter partially restrained; a titter; a giggle.

n. A slight trembling or agitation of the nerves.

n. A gardeners' name for certain plant-deformations caused by insects, notably a curious bunching and twisting of the carnation-plant caused by the work of anthomyiid larvæ. Some forms of twitter are caused by thrips and others by plantlice.

To utter a succession of small, tremulous sounds, as a bird; sing in bird-notes; chirp.

To titter; giggle.

To quiver; tremble; palpitate; hence, to be in a flutter or fright.

To sing or utter in bird-notes; chirp out.

To spin unevenly.

n. A chirp or series of chirps, as of a bird, especially the swallow.

n. A fit of laughter; a titter.

n. A tremble; a flutter; a general excitement; a pother: as, to be in (or of) a twitter, or to be in or on the twitters.

n. One who twits or reproaches.

n. A shred; a fragment: used in the plural.

n. The refuse or residuum of the case of the spermwhale, a gummy and thready substance left when the case is squeezed.

n. a series of chirps

v. make high-pitched sounds, as of birds

"BTW, I offered my services today to @twitter @EV @Biz today on twitter – no reply."

twittered    twittering    twitters   

sound    chirp    chirrup    peep    cheep   

atwitter   

upbraider    titter    giggle    chirp    quiver    tweet   

Ritter    Sitter    aglitter    bitter    chitter    critter    embitter    emitter    fitter    fritter   

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chirp    virtualization    tweetwheel    vmware    sysadmin    trill    myspace