Modern standard Japanese name for Macao. 阿媽港 is an archaic ateji spelling.
Historical kanji spelling for Macao, using ateji. Rarely used in modern Japanese.
Variant historical spelling for Macao. Even rarer than 阿媽港.
From Chinese 阿媽港 “A-Ma harbor,” an old name for Macao associated with A-Ma, the sea goddess 媽祖.