Armagh (a county of Northern Ireland) / Armagh (a town in Northern Ireland)

Northern Ireland

one thing

first, initial / one-eyed

one-eyed goblin, a Japanese monster

the United Kingdom of Great Britain and Northern Ireland

Alternative spelling of グレートブリテン及び北アイルランド連合王国 (“United Kingdom of Great Britain and Northern Ireland”)

“a hundred days of sermonizing, one fart” → a metaphor for how something that one has put great effort into can come to nothing after even a slight mistake, much as a hundred days of serious spiritual study can be lost to the winds