ninety; 90
The number 90. Reading くじゅう is older and now rare; きゅうじゅう is standard.
My grandmother will be ninety years old this year.
My test score was 90 points.
Standard kanji spelling, preferred in vertical text and formal contexts.
Arabic numeral spelling, very common in horizontal writing and statistics.
Kanji with zero marker; occasionally seen in legal or ceremonial documents to prevent forgery.
Compound of 九 (nine) and 十 (ten). The reading きゅうじゅう is the standard modern form; くじゅう reflects an older reading of 九.