(of quantities) imprecise but fairly close to correct
Lasted approximately an hour. In just about a minute. He's about 30 years old. I've had about all I can stand. We meet about once a month. Some forty people came. Weighs around a hundred pounds. Roughly $3,000. Holds 3 gallons, more or less. 20 or so people were at the party.
source: WordNet 3.0
with roughness or violence (`rough' is an informal variant for `roughly')
He was pushed roughly aside. They treated him rough.
source: WordNet 3.0
with rough motion as over a rough surface
Ride rough.
source: WordNet 3.0
In a rough manner; unevenly; harshly; rudely; severely; austerely.