六ろっカ年ねん

noun-modifying (irregular)

six-year; sexennial; recurring every six years

Used as a prenominal modifier (adj-f) in phrases like 六カ年計画 (six-year plan). Describes a period or cycle of six years.

• 政せい府ふは新あらたな六ろっカ年ねん計けい画かくを発はっ表ぴょうした。

  The government announced a new six-year plan.

• この道どう路ろ工こう事じは六ろっカ年ねんにわたって行おこなわれる。

  This road construction will be carried out over a period of six years.