alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"

aggregate, combine - gather in a mass, sum, or whole

concoct - make a concoction (of) by mixing

combine, compound - combine so as to form a whole; mix; "compound the ingredients"

blend, immingle, intermingle, intermix - combine into one; "blend the nuts and raisins together"; "he blends in with the crowd"; "We don't intermingle much"