in fact meaning

• Adverb: in fact
  1. In reality or actuality
     "in fact, it was a wonder anyone survived"; "painters who are in fact anything but unsophisticated"
     - in point of fact, as a matter of fact
• 
  [American idiom]
  in reality; really; actually.
  • I'm over forty. In fact, I'm forty-six.
  • This is a very good computer. In fact, it's the best.
  
• 
  [American slang]
  in reality; really; actually.
    I'm over forty. In fact, I'm forty-six.
    This is a very good computer. In fact, it's the best.

• and that's a fact:    [American slang]Fi ...
• fact:    Noun: fact &n ...
• it's for a fact.:    [American slang]Ru ...

Examples

1. in fact i know such tough guys.
2. but the warning in fact lulled us.
3. in fact it requires at least n generators.
4. the celebrations did not, in fact, take place ..
5. in fact these clauses were never enforced.