Definition of "Shift" :
noun: the act of changing one thing or position for another
noun: the act of moving from one place to another
"His constant shifting disrupted the class."
noun: a loose-fitting dress hanging straight from the shoulders without a waist
noun: a woman's sleeveless undergarment
noun: the key on the typewriter keyboard that shifts from lower-case letters to upper-case letters
noun: a qualitative change
noun: an event in which something is displaced without rotation
noun: a crew of workers who work for a specific period of time
noun: (geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other
noun: the time period during which you are at work
verb: make a shift in or exchange of
verb: move and exchange for another
"Shift the date for our class reunion."
verb: lay aside, abandon, or leave for another
verb: change gears
"You have to shift when you go down a steep hill."
verb: move from one setting or context to another
"Shift the emphasis."
verb: change in quality
"His tone shifted."
verb: change phonetically as part of a systematic historical change
"Grimm showed how the consonants shifted."
verb: use a shift key on a keyboard
"She could not shift so all her letters are written in lower case."
verb: move abruptly
verb: change place or direction
"Shift one's position."
verb: move sideways or in an unsteady way
verb: move very slightly
"He shifted in his seat."
verb: move around