noun-modifying (irregular)
decennial; recurring every ten years
Prenominal modifier used in formal or official contexts to describe events, plans, or surveys that occur every ten years.
The decennial plan was reviewed.
A national census is conducted every ten years.
Common variant using katakana カ for the counter.
Variant using small katakana ヵ.
Variant using small katakana ヶ.
Variant using hiragana か.
Variant using full-width katakana ケ; less common.
Variant using Arabic numeral 10.
Variant using Arabic numeral and katakana カ.
Variant using Arabic numeral and small katakana ヵ.
Variant using Arabic numeral and small katakana ヶ.
Variant using Arabic numeral and hiragana か.
Variant using Arabic numeral and full-width katakana ケ; less common.
Compound of 十 (ten) + counter 箇/カ/か (counter for items) + 年 (year). The counter variant spellings are all read as か.