What is the meaning of the word "as luck would have it"?

Definitions:

  1. by good fortune copy to clipboard adverb
    • As luck would have it, I found a twentydollar bill on the sidewalk on my way home from work. copy to clipboard
  2. by good fortune copy to clipboard adverb
    • I was planning on going to the store to buy some milk, but as luck would have it, I found a full gallon in the back of my fridge. copy to clipboard
  3. by good fortune copy to clipboard adverb
    • I had forgotten to set my alarm and was worried I would be late for work, but as luck would have it, my boss called in sick and I got to sleep in. copy to clipboard
  4. by good fortune copy to clipboard adverb
    • I had been looking for a parking spot for ages, but as luck would have it, a car pulled out right in front of me just as I was about to give up. copy to clipboard

Synonyms: