what is another word for nativism

I don't know of an exact synonym -- but jingoism is the first word that comes to mind.

http://www.merriam-webster.com/dictionary/jingoism?show=0&t=1318552435

http://www.merriam-webster.com/dictionary/nativism

http://en.wikipedia.org/wiki/Nativism_(politics)

know nothing

Another word for nativism is "xenophobia." To find synonyms for words, you can use various methods. One way is to consult a thesaurus, either online or in printed format. Thesauruses contain lists of synonyms and can help you find alternative words with similar meanings. Another option is to use a search engine by typing "synonym for nativism" or "word similar to nativism." Various websites offer synonym search functions that provide a list of alternatives. Additionally, you can also use language resources like dictionaries, which often provide synonyms alongside definitions.