How many letters does the top answer for “country whose currency is the yen” have?

The most common answer is japan (5 letters).

Crossword clue: country whose currency is the yen

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

japan 5 letters wd-fact

a string of more than 3,000 islands to the east of Asia extending 1,300 miles between the Sea of Japan and the western P

zimbabwe 8 letters wd-fact-v3

a landlocked republic in south central Africa formerly called Rhodesia; achieved independence from the United Kingdom in

country whose currency is the afghani 50% similar → afghanistan

country whose currency is the baht 50% similar → thailand

country whose currency is the bitcoin 50% similar → elsalvador

country whose currency is the boliviano 50% similar → bolivia

country whose currency is the cedi 50% similar → ghana

country whose currency is the dinar 50% similar → iraq, kuwait

country whose currency is the dirham 50% similar → morocco

country whose currency is the dollar 50% similar → australia, canada, singapore