1. (v. i.) To shake involuntarily, as with fear, cold, or weakness; to quake; to quiver; to shiver; to shudder; -- said of a person or an animal.

2. (v. i.) To totter; to shake; -- said of a thing.

3. (v. i.) To quaver or shake, as sound; to be tremulous; as the voice trembles.

4. (n.) An involuntary shaking or quivering.

Bebung all-overs be cold bob bobble bounce bump chatter chill cold shivers cold sweat cower didder disquiet disquietude dither dithers dodder falter fidget fidgetiness fidgets flip out flutter freak out on freeze freeze to death get high on glow go pitapat grimace grow cold halt have a chill have an ague have goose pimples have the fidgets have the jitters have the shakes heave heaving heebie-jeebies horripilate hustle inquietude jactitate jar jerk jig jigget jiggle jimjams jitter jitters jog joggle jolt jostle jounce jump jumps limp lose heat palpitate palpitation pant panting perish with cold pitapat pitter-patter quail quake quaking quaver quavering quiver quivering quivers restlessness rictus rock shake shake all over shakes shaking shiver shivers shock shrink shudder squirm sweat swell swell with emotion teeter thrill thrill to throb throbbing tic tingle tingle with excitement toss toss and turn totter trembles trembling tremolando tremolant tremolo tremor trepidation trepidity trill trillet trilleto trillo tumble turn on to twist and turn twitch twitter unrest vibrate vibration vibrato wiggle willies wince wobble wriggle writhe