17 possible answers to
Answers with 3 characters: ADD MIX WED Answers with 4 characters: FUSE JOIN MELD POOL Answers with 5 characters: ADDIN BLEND MERGE UNIFY UNION UNITE Answers with 6 characters: CARTEL Answers with 7 characters: AMALGAM Answers with 8 characters: INTERACT Answers with 11 characters: CONSOLIDATE