<p>As long as you are a US citizen (no matter how many other citizenship you have), no matter where you live, you will not be considered an international.</p>
<p>so the definition of international is if you have citizenship of another nation? (and will be compared to others going to school in other nations...? or is it just for financial aid?) what if you have gone to a secondary school in the US for all four years?</p>
<p>Unless you hold US citizenship or are a permanent resident as defined by the federal immigration laws, you are considered an international student for both admissions and financial aid purposes. Going to high school in the US doesn't change things, except (1) you probably will not need to take the TOEFL; and (2) colleges who are familiar with your high school and its curriculum will be able to assess your application better.</p>