What is the meaning of rotate?

verb

• Turn on or around an axis or a center.
  • usage: "The Earth revolves around the Sun"; "The lamb roast rotates on a spit over the fire"
  • synonyms: revolve, go around
• Exchange on a regular basis.
  • usage: "We rotate the lead soprano every night"
• Perform a job or duty on a rotating basis.
  • usage: "Interns have to rotate for a few months"
• Cause to turn on an axis or center.
  • usage: "Rotate the handle"
  • synonyms: circumvolve
• Turn outward.
  • usage: "These birds can splay out their toes"; "ballet dancers can rotate their legs out by 90 degrees"
  • synonyms: turn out, splay, spread out
• Plant or grow in a fixed cyclic order of succession.
  • usage: "We rotate the crops so as to maximize the use of the soil"