Definition of "heavily"

heavily

/ˈhɛvɪli/

adverb
comparative more heavily, superlative most heavily
1. With a great weight.
  Quotations
  The departure was not unduly prolonged. […] Within the door Mrs. Spoker hastily imparted to Mrs. Love a few final sentiments on the subject of Divine Intention in the disposition of buckets; […] ; a deep, guttural instigation to the horse; and the wheels of the waggonette crunched heavily away into obscurity.
  1922, Ben Travers, chapter 5, in A Cuckoo in the Nest
2. To a considerable degree, to a great extent.
  Quotations
  An indulgent playmate, Grannie would lay aside the long scratchy-looking letter she was writing (heavily crossed ‘to save notepaper’) and enter into the delightful pastime of ‘a chicken from Mr Whiteley's’.
  1977, Agatha Christie, chapter 4, in An Autobiography, part I, London: Collins
3. In a manner designed for heavy duty.
  Quotations
  Nanny Broome was looking up at the outer wall. Just under the ceiling there were three lunette windows, heavily barred and blacked out in the normal way by centuries of grime.
  1963, Margery Allingham, chapter 14, in The China Governess‎
4. So as to be thick or heavy.
5. In a laboured manner.