Is it specifically anglophone? If anything, I think America=USA is a stronger association in some continental European languages. In English it's common to use "American" as an adjective, but not so common to use "America" as a noun to mean the USA, saying things like "I have a cousin in America" or "I took a vacation to America last year" (in both of these cases constructions like "the U.S." or "the States" are more common). But in Greek you'd definitely use "Αμερική" in those cases too, unless you were writing formally (in which case you'd say "Ηνωμένες Πολιτείες" or ΗΠΑ).