四よ桁けたMeanings1nounfour-digit number; thousands placeRefers to a number with four digits or the thousands column in a numeral. Often used in contexts like passcodes, prices, or place value.暗あん証しょう番ばん号ごうは四よ桁けたの数すう字じです。The PIN is a four-digit number.この金きん額がくは四よ桁けたに達たっした。This amount has reached four digits.