1. (adverb)compactly in a compactmanner or state "The children were packed compactly into the car"
2. (adverb)succinctly, compactly with concise and precise brevity; to the point "Please state your case as succinctly as possible"; "he wrote compactly but clearly"
3. (adverb)compactly taking up no morespace than necessary "liquid food compactly stored in a pressurized tank"