二にか年ねん

Meanings

noun-modifying (irregular)

Used as a prenominal modifier meaning 'occurring every two years' or 'lasting two years'. Common in official contexts like plans, budgets, or contracts.

二にか年ねん計けい画かくを立たてる。
We will draw up a two-year plan.
この植しょく物ぶつは二にか年ねん周しゅう期きで花はなを咲さかせる。
This plant blooms on a biennial cycle.

Kanji

二two, two radical (no. 7)
箇counter for articles
年year, counter for years

Related words

二に年ねん
二年 is the simple 'two years' (duration or point in time), while 二か年 is a formal, prenominal modifier used in official contexts like 'two-year plan'.

Written forms

二にか年ねん
Clear, standard spelling using hiragana か for the counter; avoids rare kanji 箇.
二ヶ年にかねん
Common variant using the small katakana ヶ (a simplification of 箇).
二にカ年ねん
Variant with full-size katakana カ, often seen in official or formal documents.
二ヵ年にかねん
Variant with small katakana ヵ, similar to ヶ.
二に箇か年ねん
Formal or literary spelling using the kanji 箇; rarely used in modern writing.
二ケ年にかねん
Uncommon variant with full-size katakana ケ.
２にか年ねん
Variant using Arabic numeral 2 instead of kanji 二.
２ヶ年にかねん
Variant with Arabic numeral and small ヶ.
２にカ年ねん
Variant with Arabic numeral and full-size カ.
２ヵ年にかねん
Variant with Arabic numeral and small ヵ.
２ケ年にかねん
Uncommon variant with Arabic numeral and full-size ケ.
２に箇か年ねん
Rare variant with Arabic numeral and kanji 箇.

Etymology

Compound of 二 (two) + counter か (from 箇, a counter for items) + 年 (year). The か is often written as ヶ, カ, or ヵ, all derived from the kanji 箇.