To mix or merge with. I wonder how the two groups of kids will amalgamate with each other.What department is ours being amalgamated with?
amalgamate something with something
to unite something with something else; to merge two things. We will amalgamate this company with another firm.How long has our local been amalgamated with the national union?
amalgamate with something
to join with something; to merge with something. Our group decided to amalgamate with another group.The groups did not amalgamate after all.