What is the meaning of motion?

noun

• The use of movements (especially of the hands) to communicate familiar or prearranged signals.
  • synonyms: gesture
• A natural event that involves a change in the position or location of something.
  • synonyms: movement
• A change of position that does not entail a change of location.
  • usage: "the reflex motion of his eyebrows revealed his surprise"; "movement is a sign of life"; "an impatient move of his hand"; "gastrointestinal motility"
  • synonyms: movement, move, motility
• A state of change.
  • usage: "they were in a state of steady motion"
• A formal proposal for action made to a deliberative assembly for discussion and vote.
  • usage: "he made a motion to adjourn"; "she called for the question"
  • synonyms: question
• The act of changing location from one place to another.
  • usage: "police controlled the motion of the crowd"; "the movement of people from the farms to the cities"; "his move put him directly in my path"
  • synonyms: movement, move
• An optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object.
  • usage: "the cinema relies on apparent motion"; "the succession of flashing lights gave an illusion of movement"
  • synonyms: apparent motion, apparent movement, movement

verb

• Show, express or direct through movement.
  • usage: "He gestured his desire to leave"
  • synonyms: gesticulate, gesture