What is the meaning of dot?

noun

• A very small circular shape.
  • usage: "a row of points"; "draw lines between the dots"
  • synonyms: point
• The United States federal department that institutes and coordinates national transportation programs; created in 1966.
  • synonyms: Department of Transportation, Transportation
• The shorter of the two telegraphic signals used in Morse code.
  • synonyms: dit
• Street name for lysergic acid diethylamide.
  • synonyms: acid, back breaker, battery-acid, dose, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane, Zen

verb

• Scatter or intersperse like dots or studs.
  • usage: "Hills constellated with lights"
  • synonyms: stud, constellate
• Distribute loosely.
  • usage: "He scattered gun powder under the wagon"
  • synonyms: scatter, sprinkle, dust, disperse
• Make a dot or dots.
• Mark with a dot.
  • usage: "dot your `i's"