What is the meaning of actually?

adverb

• In actual fact.
  • usage: "to be nominally but not actually independent"; "no one actually saw the shark"; "large meteorites actually come from the asteroid belt"
  • synonyms: really
• Used to imply that one would expect the fact to be the opposite of that stated; surprisingly.
  • usage: "you may actually be doing the right thing by walking out"; "she actually spoke Latin"; "they thought they made the rules but in reality they were only puppets"; "people who seem stand-offish are in reality often simply nervous"
  • synonyms: in reality
• At the present moment.
  • usage: "the transmission screen shows the picture that is actually on the air"
• As a sentence modifier to add slight emphasis.
  • usage: "actually, we all help clear up after a meal"; "actually, I haven't seen the film"; "I'm not all that surprised actually"; "she hasn't proved to be too satisfactory, actually"