Meaning of roughly

(adv) (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"

with roughness or violence (`rough' is an informal variant for `roughly'); "he was pushed roughly aside"; "they treated him rough"

with rough motion as over a rough surface; "ride rough"