1) Come to a new land 2) Come to America 3) Migrate 4) Migrate to a new environment 5) Resettle 6) Transmigrate 
• (v. t.) To come into a country of which one is not a native, for the purpose of permanent residence. See Emigrate.
Im'mi·grate transitive verb [ imperfect & past participle Immigrated ; present participle & verbal noun Immigrating .] [ Latin immigrare , immigratum , to immigrate; prefix im- in + migrare to migrate. See 
[v] - migrate to a new environment, of plants and animals 2. [v] - introduce or send as immigrants 3. [v] - come into a new country and change residency
verb come into a new country and change residency; `Many people immigrated at the beginning of the 20th century`