1) Adapt to the New World 2) Alter 3) Americanise 4) Change 5) Modify 1) Americanise 
• (v. t.) To render American; to assimilate to the Americans in customs, ideas, etc.; to stamp with American characteristics.
A·mer'i·can·ize (-īz) transitive verb [ imperfect & past participle Americanizer ; present participle & verbal noun Americanizing .] To render American; to assimilate to the Americans in customs, ideas, etc.; to stamp with America...
[v] - make American in character 2. [v] - become American in character
Americanise verb become American in character; `After a year in Iowa, he has totally Americanized`
to make or become American in character; assimilate to the customs and institutions of the U.S.