Nisei (二世, "second generation") is a Japanese language term used in countries in North America and South America to specify the ethnically Japanese children born in the new country to Japanese-born immigrants (who are called Issei). The Nisei are considered the second generation, and the grandchildren of the Japanese-born immigrants are called Sansei, or third generation. (Ichi, ni, san are Japanese for "one, two, three"; see Japanese numerals.)