Substantial size (4)
I believe the answer is:
bulk
(Other definitions for bulk that I've seen before include "Volume or size" , "Greater part" , "Mass of something large" , "Large mass; roughage" , "Size - mass" .)
I believe the answer is:
bulk
(Other definitions for bulk that I've seen before include "Volume or size" , "Greater part" , "Mass of something large" , "Large mass; roughage" , "Size - mass" .)