already vs currently

already

adv
  • So soon. 

  • Prior to some specified time, either past, present, or future; by this time; previously. 

  • An intensifier used to emphasize impatience or express exasperation. 

currently

adv
  • At this moment, at present, now. 

How often have the words already and currently occurred in a corpus of books? (source: Google Ngram Viewer )