十じゅう箇か年ねんじ字FuriganaAudioMeanings1noun-modifying (irregular)decennial; recurring every ten yearsPrenominal modifier used in formal or official contexts to describe events, plans, or surveys that occur every ten years.十じゅう箇か年ねん計けい画かくの見み直なおしが行おこなわれた。Break this sentence down in the analyzerThe decennial plan was reviewed.十じゅうカ年ねんごとの国こく勢せい調ちょう査さが実じっ施しされる。Break this sentence down in the analyzerA national census is conducted every ten years.