An American spelling is a spelling of an individual work such as is preferred in the United States as opposed to the United Kingdom or elsewhere.
American spelling is 'recognized'. British spelling is 'recognised'.
The British spelling is "squash" and the American spelling is also "squash." Both countries use the same spelling for this word.
Apologized is the American spelling, and apologised is the British spelling.
Savior is the American spelling. Saviour is the British spelling.
The American spelling of "analyze" is "analyze," with a "z" instead of an "s."
The British spelling is "aluminium"; the American spelling is "aluminum."
Favorable is the American spelling. Favourable is the British spelling.
CANCELLED is the British way of spelling it, CANCELED is the American
Centimetre (English spelling) or centimeter (American spelling)
True, Noah Webster's Blue-Backed speller did help to standardize spelling and distinguish British from American spelling. His Blue-Backed spellers taught generations of American children to read and write. He is also responsible for the secularization of American schools.
It can be spelled "marginalised" (British spelling) or "marginalized" (American spelling).
"Odour" (English spelling) or "odor" (American spelling).