丸まる一いっヶか月げつ

Meanings

1

the whole month; an entire month

Emphasizes a full, uninterrupted month; often used with durations or time spans.

丸まる一いっヶか月げつ、雨あめが降ふらなかった。
It didn't rain for a whole month.
彼かれは丸まる一いっヶか月げつ間かん、入にゅう院いんしていた。
He was hospitalized for an entire month.

Kanji

丸round, full (month), perfection
一one, one radical (no.1)
月month, moon
箇counter for articles

Related words

一いっヶか月げつ
Simply means 'one month'; 丸一ヶ月 adds emphasis on the completeness or entirety of that month.

Built from

丸まる+一いっヶか月げつ

Written forms

丸まる一いっヶか月げつ
Standard kanji spelling using ヶ (small ke) for the counter.
丸一ヵ月まるいっかげつ
Variant using ヵ (small ka).
丸まる一いっカか月げつ
Variant using full-size カ.
丸まる一いっか月げつ
Variant using hiragana か.
丸まる一いっ箇か月げつ
Formal variant using 箇; less common in everyday writing.
丸まる一いっケか月げつ
Variant using full-size ケ; may be seen in older texts.

Etymology

Compound of 丸 (maru, 'whole, complete') + 一 (ichi, 'one') + ヶ月 (kagetsu, counter for months). The ヶ is a simplified form of 箇 (ka), a counter word.