What is the meaning of centering?

noun

• The concentration of attention or energy on something.
  • usage: "the focus of activity shifted to molecular biology"; "he had no direction in his life"
  • synonyms: focus, focusing, focussing, focal point, direction
• American football) putting the ball in play by passing it (between the legs) to a back. (
  • usage: "the quarterback fumbled the snap"
  • synonyms: snap

verb

• Center upon.
  • usage: "Her entire attention centered on her children"; "Our day revolved around our work"
  • synonyms: focus on, center on, revolve around, revolve about, concentrate on, center
• Direct one's attention on something.
  • usage: "Please focus on your studies and not on your hobbies"
  • synonyms: concentrate, focus, center, centre, pore, rivet
• Move into the center.
  • usage: "That vase in the picture is not centered"
  • synonyms: center, centre