American

[uh-mer-i-kuh n] /əˈmɛr ɪ kən/
adjective
1.
of or pertaining to the United States of America or its inhabitants:
an American citizen.
2.
of or pertaining to North or South America; of the Western Hemisphere:
the American continents.
3.
of or pertaining to the aboriginal Indians of North and South America, usually excluding the Eskimos, regarded as being of Asian ancestry and marked generally by reddish to brownish skin, black hair, dark eyes, and prominent cheekbones.
noun
4.
a citizen of the United States of America.
5.
a native or inhabitant of the Western Hemisphere.
6.
an Indian of North or South America.
7.
American English.
8.
a steam locomotive having a four-wheeled front truck, four driving wheels, and no rear truck.
Origin
1570-80; Americ(a) + -an
Related forms
Americanly, adverb
Americanness, noun

American, The

noun
1.
a novel (1877) by Henry James.
British Dictionary definitions for American

American

/əˈmɛrɪkən/
adjective
1.
of or relating to the United States of America, its inhabitants, or their form of English
2.
of or relating to the American continent
noun
3.
a native or citizen of the US
4.
a native or inhabitant of any country of North, Central, or South America
5.
the English language as spoken or written in the United States
Word Origin and History for American

1570s (n.); 1590s (adj.), from Modern Latin Americanus, from America (q.v.); originally in reference to what now are called Native Americans; the sense of "resident of North America of European (originally British) descent" is first recorded 1640s (adj.); 1765 (n.).