Twitch-grass=Couch-grass.

Twitter, twit′ėr, n. a chirp, as of a bird: a tremulous broken sound: a slight trembling of the nerves.—v.i. to make a succession of small tremulous noises: to feel a slight trembling of the nerves, to palpitate.—v.t. to chirp out.—ns. Twitterā′tion, a flutter; Twitt′ering, act of twittering: the sound of twittering: nervous excitement.—adv. Twitt′eringly. [A freq. of twit, allied to titter, &c.; cf. Ger. zwitschern, Sw. qvittra.]

Twitter-bone, twit′ėr-bōn, n. an excrescence on a horse's hoof.—adj. Twitt′er-boned, shaky.

Twit-twat, twit′-twot, n. the house sparrow.

'Twixt. Abbreviation for betwixt.

Twizzle, twiz′l, v.i. (prov.) to roll and twist.

Two, tōō, adj. one and one.—n. the sum of one and one: a figure representing two: a pair.—n. Two′-deck′er, a vessel of war carrying guns on two decks.—adjs. Two′-edged, having two edges; Two′-faced, having two faces, hence double-dealing, false; Two′fold, folded twice: multiplied by two: double.—adv. doubly.—adjs. Two′-forked, Twī′-forked, double-pronged, bifurcate; Two′-front′ed, having fronts on opposite sides; Two′-hand′ed, having, or used with, two hands: ambidexterous, handy: to be used by two persons; Two′-head′ed, having two heads: directed by two authorities; Two′-leaved, having two distinct leaves; Two′-legged, furnished with two legs; Two′-line (print.), having a depth of body equal to double that of the size specified, as two-line nonpareil or pica; Two′-lipped, having two lips: divided so as to resemble two lips; Two′-mast′ed, having two masts; Two′-nee′dle, perforated with two needles.—n. Two′ness, the state of being two, doubleness.—adj. Two′-part′ed, bipartite, divided into two nearly to the base.—n. Twopence (tup′ens, or tōō′pens), the sum of two pennies: (Shak.) a gilt coin worth two pence.—adj. Twopenny (tup′en-i, or tōō′pen-i), of the value of twopence: cheap, worthless.—n. ale sold at twopence a quart.—adjs. Two′-ply, consisting of two thicknesses: woven double; Two′-ranked, alternately arranged in two exactly opposite rows, distichous, bifarious; Two′-sid′ed, having two surfaces, or two aspects or phases: facing two ways, turned in two directions, often with implied sense of double-dealing or deceit; Two′some, two, twofold; Two′-tongued, double-tongued, deceitful; Two′-way, arranged so as to permit a fluid to be turned into either of two channels: (math.) having a double mode of variation; Twī′-nā′tured, Twy′-nā′tured, double natured—human and animal in one.—Be two, to be at variance; In two, asunder. [A.S. twá (fem.), twégen (masc.), twa, (neut.); Ger. zwei, Goth. twai; also Gr. dyo, L. duo, Sans. dva, Gael. da, do.]

Twyer, twī′ėr, n. a tube through which the blast of air enters a blast-furnace.—Also Tuy′ere, Tweer, Tuy′er, Twi′er. [Fr. tuyère, a nozzle.]

Tyburn, tī′burn, n. the historic place of execution in London.—ns. Ty′burn-tick′et, a certificate of exemption from certain parochial offices formerly granted to the prosecutor of a felon to conviction; Ty′burn-tipp′et, a halter; Ty′burn-tree, the gallows.

Tyche, tī′kē, n. (Gr. myth.) the goddess of fortune.