What does "us english orthography" mean?

English orthography used in the United States (characterized by ‘analyze’, ‘center’, ‘usable’)

Us english orthography

Common synonyms include: american english orthography, american english spelling, american spelling, us english spelling, us spelling.

Rare ·Advanced level

Noun

1
English orthography used in the United States (characterized by ‘analyze’, ‘center’, ‘usable’) wordnet