What is another word for "unification"?

Roget's Thesaurus (1911) lists these synonyms for "unification": absorb, absorption, abstract, ace, alloy, alone, amalgam, amalgamate, amalgamation, and, apart, atomic, azygous, beat, blend, blending, but, cement, centralization, centralize, coalesce, coalescence, combination, combine, combined, compact, composition, compound, consolidate, crasis, desolate, dine, disjoin, disjunction, dreary, else, embodiment, embody, first, fort.