United States of America; USA; US
Abbreviation of アメリカ合衆国. The most common meaning in everyday Japanese.
See also: アメリカ合衆国
彼はアメリカから来ました。
He came from the United States.
I plan to study abroad in the US next year.
America (the continents); the Americas
Refers to the landmass of North and South America. Less common than the country meaning; context usually makes it clear.
Columbus reached the American continent in 1492.
アメリカ合衆国 is the full formal name for the country, while アメリカ is the common, casual abbreviation used in everyday speech.
米国 is the formal, written abbreviation for the United States often used in news and official documents, while アメリカ is the everyday spoken term.
アメリカ合衆国 is the full, formal name of the country used in official contexts, while アメリカ is the common everyday abbreviation.
アメリカ is the country name, whereas アメリカン is the adjectival form meaning 'American-style' and can also mean a weak coffee.
アメリカ usually means the United States specifically, while 北アメリカ refers to the whole continent including Canada and Mexico.
Ateji spelling; rarely used in modern Japanese.