What is the meaning of gesture?

noun

• Motion of hands or body to emphasize or help to express a thought or feeling.
• The use of movements (especially of the hands) to communicate familiar or prearranged signals.
  • synonyms: motion
• Something done as an indication of intention.
  • usage: "a political gesture"; "a gesture of defiance"

verb

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