How many letters does the top answer for “capital of saudi arabia” have?

The most common answer is riyadh (6 letters).

Crossword clue: capital of saudi arabia

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

riyadh 6 letters wd-fact

joint capital (with Mecca) of Saudi Arabia located in the central oasis; largest city in Saudi Arabia

bridge in saudi arabia 50% similar → kingfahdcauseway

city in saudi arabia 50% similar → albahah, almajmaah, alula

currency of saudi arabia 50% similar → rial

desert in saudi arabia 50% similar → addahnadesert, annafud, arabiandesert

island in saudi arabia 50% similar → janaisland, passportisland, tiranisland

mountain in saudi arabia 50% similar → harratalbirk, harratkhaybar, jabalsawda