長ちょう期き間かん

ちょ

う

き

か

ん

Freq.FrequencyTop 20,000

Meanings

noun, adverb, noun which may take the genitive case particle 'no'

long period; long term; extended period

Used as a noun, adverbially, or with の to modify nouns. Often appears in contexts like storage, planning, absence, or sustained effort.

〈事こと〉が長ちょう期き間かん続つづくfor something to continue over a long period
この不ふ況きょうは長ちょう期き間かん続つづいている。
This economic downturn has continued for a long time.
長ちょう期き間かんにわたって〈動どう詞し〉to do something over an extended period
その研けん究きゅうは長ちょう期き間かんにわたって行おこなわれた。
The research was carried out over a long period of time.
長ちょう期き間かん〈場ば所しょ〉を離はなれるto be away from a place for a long period
彼かれは長ちょう期き間かん家いえを離はなれていた。
He had been away from home for a long time.
長ちょう期き間かん保ほ存ぞんできるcan be stored/preserved for a long period
この食しょく品ひんは長ちょう期き間かん保ほ存ぞんできる。
This food can be preserved for a long time.

長ちょう期きN3
長期 is a more formal term often used in compounds like 長期計画, while 長期間 stresses the duration itself, as in 長期間保存する.
長ちょう時じ間かん
長時間 describes a stretch measured in hours within one continuous period, while 長期間 refers to a duration spanning days, months, or years.
長なが年ねんN2
長期間 is a neutral, often technical term for a long period, whereas 長年 specifically emphasizes years passing and is more common in everyday narration.

短たん期き間かん
短期間 means a short period of time, the direct opposite of 長期間's long period of time.

長ちょう時じ間かん
長時間 refers to a long stretch of hours or minutes (e.g. a long meeting), whereas 長期間 refers to an extended span of months or years.

Compound of 長 (long) + 期間 (period, term).