月間(げっかん)

げっかん
noun, suffix
monthly period, month-long
time-period
See also: 月刊(げっかん) (monthly publication)
1. monthly period, span of a month, month-long (campaign or event)
A period spanning one month. Often used as a suffix attached to a campaign or awareness theme to indicate a designated month — similar to English constructions like 'Fire Prevention Month' or 'Breast Cancer Awareness Month.'
交通(こうつう)安全(あんぜん)月間(げっかん)が始(はじ)まった。
Traffic Safety Month has started.
月間(げっかん)売上(うりあげ)が過去(かこ)最高(さいこう)を記録(きろく)した。
Monthly sales set an all-time record.
十月(じゅうがつ)は読書(どくしょ)推進(すいしん)月間(げっかん)で、図書館(としょかん)では様々(さまざま)なイベントが開(ひら)かれる。
October is Reading Promotion Month, and various events are held at libraries.

Usage

月間(げっかん) has two main uses:
1. As a suffix for designated awareness/campaign months: 〜月間(げっかん)
2. As a modifier meaning "monthly" or "for the month": 月間(げっかん) + noun

Common designated months in Japan include 防災(ぼうさい)月間(げっかん) (Disaster Prevention Month) and 環境(かんきょう)月間(げっかん) (Environment Month).

Common collocations

Related Words

Related: 累計(るいけい) (cumulative total)
general
Added 2026.2.23 19:41 · Revised 2026.9.2 13:01
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