consolidate - unite into one; "The companies consolidated"

consubstantiate - become united in substance; "thought and the object consubstantiate"

syncretise, syncretize - unite (beliefs or conflicting principles)

converge - come together so as to form a single product; "Social forces converged to bring the Fascists back to power"

federate, federalise, federalize - enter into a league for a common purpose; "The republics federated to become the Soviet Union"

integrate - become one; become integrated; "The students at this school integrate immediately, despite their different backgrounds"

coalesce - fuse or cause to grow together

change integrity - change in physical make-up

gauge - mix in specific proportions; "gauge plaster"

absorb - cause to become one with; "The sales tax is absorbed into the state income tax"

meld, melt - lose its distinct outline or shape; blend gradually; "Hundreds of actors were melting into the scene"

mix in, blend in - cause (something) to be mixed with (something else); "At this stage of making the cake, blend in the nuts"

accrete - grow together (of plants and organs); "After many years the rose bushes grew together"

conjugate - unite chemically so that the product is easily broken down into the original compounds

admix - mix or blend; "Hyaline casts were admixed with neutrophils"

alloy - make an alloy of

syncretise, syncretize - become fused

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"

consolidate - bring together into a single whole or system; "The town and county schools are being consolidated"

weld - unite closely or intimately; "Her gratitude welded her to him"

consubstantiate - unite in one common substance; "Thought is consubstantiated with the object"