1) Accumulated 2) Amassed 3) Assembled 4) Assembled as one body 5) Came together 6) Collected 7) Concentrated 8) Congregate 9) Congregated 10) Formed a crowd 11) Formed into a bulk 12) Gathered 13) Gathered in a crowd 14) Gathered in a group 15) Gathered in great numbers 16) Gathered together 17) Got together 1) Accumulated 2) Amassed 3) Assembled 4) Concentrated 5) Congregate 
• (imp. & p. p.) of Mass