definition of
shift

[1] #1 shift v. [switch, change over] make a shift in or exchange of; "First Joe led; then we switched". wn

[2] #2 shift v. [dislodge, reposition] change place or direction; "Shift one's position". wn

[3] #3 shift n. [displacement] an event in which something is displaced without rotation. wn

[4] #4 shift n. [transformation, transmutation] a qualitative change. wn

[5] #5 shift v. [transfer] move around; "transfer the packet from his trouser pockets to a pocket in his jacket". wn