Nouns

(n)Americana native or inhabitant of the United States
(n)American English, American language, Americanthe English language as used in the United States
(n)Americana native or inhabitant of a North American or Central American or South American country

Adjectives

(a)Americanof or relating to the United States of America or its people or language or culture“American citizens”, “American English”, “the American dream”
(a)Americanof or relating to or characteristic of the continents and islands of the Americas“the American hemisphere”, “American flora and fauna”