Quadruple VS
Synonym Boundary: "いち", "もういちど", "片道", "一因"
All represent the core concept "one", but require precise selection.
Japanese Option A
いち
いち (ichi)
N5 / CEFR
Japanese Option B
もういちど
もういちど (mou ichido)
N5 / CEFR
Japanese Option C
片道
かたみち (katamichi)
N4 / CEFR
Japanese Option D
一因
いちいん (ichiin)
N2 / CEFR
Quadruple VS Nuance Contrast & Social Differences
When expressing "one" in Japanese, you must carefully distinguish between "いち", "もういちど", "片道", "一因" based on context.
- いち (いち (ichi) - Level: N5): Maps to "one" and is used when Basic number for counting. Can be used as a standalone number or with various counters.
- もういちど (もういちど (mou ichido) - Level: N5): Maps to "One more time; Again" and is used when Used to request repetition or another attempt. Often combined with 「お願いします」.
- 片道 (かたみち (katamichi) - Level: N4): Maps to "one way, single trip" and is used when Describes a journey to a destination without returning. Often used with きっぷ.
- 一因 (いちいん (ichiin) - Level: N2): Maps to "one cause; a contributing factor" and is used when Used to indicate one of several causes or factors contributing to a situation, often a negative one..
Context for "いち"
りんごが一つあります。
There is one apple.
Context for "もういちど"
もう一度言ってください。
Please say it one more time.
Context for "片道"
彼は飛行機の片道チケットしか持っていませんでした。
He only had a one-way flight ticket.
Context for "一因"
彼の失敗は準備不足が一因だ。
His failure was partly due to insufficient preparation.
Synonym Mastery Challenge
Which Japanese word perfectly fits this blank space?
Fill in the blank: "りんごが一つあります。" (Meaning: "There is one apple.")
🎉 Correct Answer!
Remember: "いち" is correct here because it represents "one" in the context: "There is one apple.".