distinct vocabulary
rhoticity
flapping of t and d
use of serial comma
flat a in 'cat'
periods and commas inside quotation marks
simplified spelling
use of 'analyze' instead of 'analyse'
use of 'center' instead of 'centre'
use of 'color' instead of 'colour'
use of 'defense' instead of 'defence'
use of 'fall' for autumn
use of 'gotten'
use of 'traveling' instead of 'travelling'
use of double quotation marks for direct speech