Compact (5)
'compact' is the definition.
(synonyms)
This is all the clue.
(Other definitions for dense that I've seen before include "Tightly packed - stupid" , "Slow-witted" , "Thick, compact or crowded" , "Thick as undergrowth may be" , "Close - compact - stupid" .)
'compact' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for solid that I've seen before include "Sound; substantial" , "Dense" , "Three-dimensional - compact" , "Three-dimensional shape, not hollow" , "Rock-hard" .)
'compact' is the definition.
(I know that compact is a type of compact)
This is the entire clue.
(Other definitions for treaty that I've seen before include "Written agreement between two states" , "Covenant" , "Formal agreement between nations" , "Formal agreement between governments" , "alliance" .)