Definition of "American" :

noun: the English language as used in the United States

noun: a native or inhabitant of a North American or Central American or South American country

noun: a native or inhabitant of the United States

adjective: of or relating to or characteristic of the continents and islands of the Americas

"The American hemisphere."

adjective: of or relating to the United States of America or its people or language or culture

"American citizens."