hit β to deal a blow or stroke to: Hit the nail with the hammer.
knock β to strike a sounding blow with the fist, knuckles, or anything hard, especially on a door, window, or the like, as in seeking admittance, calling attention, or giving a signal: to knock on the door before entering.
pan β an international distress signal used by shore stations to inform a ship, aircraft, etc., of something vital to its safety or to the safety of one of its passengers.
skin alive β the external covering or integument of an animal body, especially when soft and flexible.
take down β made or constructed so as to be easily dismantled or disassembled.
stumble β to strike the foot against something, as in walking or running, so as to stagger or fall; trip.
stutter β distorted speech characterized principally by blocks or spasms interrupting the rhythm.
flounder β to struggle with stumbling or plunging movements (usually followed by about, along, on, through, etc.): He saw the child floundering about in the water.
hesitate β to be reluctant or wait to act because of fear, indecision, or disinclination: She hesitated to take the job.
waver β to sway to and fro; flutter: Foliage wavers in the breeze.
wobble β to incline to one side and to the other alternately, as a wheel, top, or other rotating body when not properly balanced.
bobble β A bobble is a small ball of material, usually made of wool, which is used for decorating clothes.
break β When an object breaks or when you break it, it suddenly separates into two or more pieces, often because it has been hit or dropped.
fluctuate β to change continually; shift back and forth; vary irregularly: The price of gold fluctuated wildly last month.
halt β to falter, as in speech, reasoning, etc.; be hesitant; stumble.
lurch β Archaic. the act of lurking or state of watchfulness.
quaver β to shake tremulously; quiver or tremble: He stood there quavering with fear.
rock β rock the boat, Informal. to disrupt the smooth functioning or routine of something: Don't rock the boat by demanding special treatment from management.
roll β to move along a surface by revolving or turning over and over, as a ball or a wheel.
scruple β a moral or ethical consideration or standard that acts as a restraining force or inhibits certain actions.
shake β to move or sway with short, quick, irregular vibratory movements.