Explore Words Kanji Grammar Guides

Copyright © 2026 Kotomora. All Rights Reserved.

Get the Kotomora apps for iOS and Android.

Explore Words Kanji Grammar Guides About Support Privacy

Copyright © 2026 Kotomora. All Rights Reserved.

丸一日 (maruichinichi) Japanese meaning: the whole day | Kotomora

丸まる一いち日にち

ま

る

い

ち

に

ち

○

Meanings

1

the whole day; all day

Emphasizes the entirety of a single day, often used when a full day is spent on something or when something lasts all day.

丸まる一いち日にちかけて大おお掃そう除じをした

。

I spent the whole day doing a thorough cleaning.

その作さ業ぎょうには丸まる一いち日にちかかる。

That task takes a full day.

Kanji

丸round, full (month), perfection
一one, one radical (no.1)
日day, sun, Japan

Related words

一いち日にち中じゅう
一日中 means 'all day long' focusing on duration throughout the day, while 丸一日 emphasizes the completeness of a single day as a unit.

Built from

丸まる一いち+日にち

Written forms

丸まる一いち日にち
Standard kanji spelling.
まる一いち日にち
Mixed kanji-kana spelling, also common.
丸まる１いち日にち
Variant using numeral 1.
まる１いち日にち
Mixed kana-numeral variant.

Etymology

Compound of 丸 (まる, 'whole, complete') and 一日 (いちにち, 'one day').