Read the dictionary definition of heavily. All definitions for this word.
1. to a considerable degree
1. he relied heavily on others' data
2. indulging excessively
1. he drank heavily
3. in a labored manner
1. he breathed heavily
4. slowly as if burdened by much weight
1. time hung heavy on their hands
5. in a manner designed for heavy duty
1. a heavily constructed car
2. heavily armed
6. in a heavy-footed manner
1. he walked heavily up the three flights to his room
7. with great force
1. she hit her arm heavily against the wall