Definition of "Rotate" :
verb: plant or grow in a fixed cyclic order of succession
"We rotate the crops so as to maximize the use of the soil."
verb: perform a job or duty on a rotating basis
"Interns have to rotate for a few months."
verb: turn on or around an axis or a center
"The lamb roast rotates on a spit over the fire."
verb: turn outward
"Ballet dancers can rotate their legs out by 90 degrees."
verb: cause to turn on an axis or center
"Rotate the handle."
verb: exchange on a regular basis
"We rotate the lead soprano every night."