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switch - n. a small device that starts or stops the flow of electricity to something (such as a lamp or a machine) when it is pressed or moved up and down
pitch black – adj. completely dark
flickers – n. (plural) a quick and unsteady movement of light
sidewalk – n. a usually concrete path along the side of a street for people to walk on
crosswalk – n. a marked path where people can safely walk across a street or road
pattern – n. a repeated form or design especially that is used to decorate something
