🦅 Project Eagle
Quintuple VS

Synonym Boundary: "外国語", "貿易", "為替換算調整勘定", "外貨建取引", "在外子会社"

All represent the core concept "foreign", but require precise selection.

Japanese Option A

外国語

がいこくご (gaikokugo)
N5 / CEFR
Japanese Option B

貿易

ぼうえき (boueki)
B2 / CEFR
Japanese Option C

為替換算調整勘定

かわせかんさんちょうせいかんじょう (kawasekansanchouseikanjou)
C2 / CEFR
Japanese Option D

外貨建取引

がいかだてとりひき (gaikadatetorihiki)
C2 / CEFR
Japanese Option E

在外子会社

ざいがいこがいしゃ (zaigaikogaisya)
C2 / CEFR

Quintuple VS Nuance Contrast & Social Differences

When expressing "foreign" in Japanese, you must carefully distinguish between "外国語", "貿易", "為替換算調整勘定", "外貨建取引", "在外子会社" based on context.
  • 外国語 (がいこくご (gaikokugo) - Level: N5): Maps to "foreign language" and is used when This term refers to any language that is not one's native language. Often used when talking about studying or speaking a language from another country..
  • 貿易 (ぼうえき (boueki) - Level: B2): Maps to "foreign trade" and is used when Essential structural term in CEFR B2 vocabulary syllabus..
  • 為替換算調整勘定 (かわせかんさんちょうせいかんじょう (kawasekansanchouseikanjou) - Level: C2): Maps to "foreign currency translation adjustment" and is used when Essential structural term in CEFR C2 vocabulary syllabus..
  • 外貨建取引 (がいかだてとりひき (gaikadatetorihiki) - Level: C2): Maps to "Foreign Currency Transaction" and is used when Essential structural term in CEFR C2 vocabulary syllabus..
  • 在外子会社 (ざいがいこがいしゃ (zaigaikogaisya) - Level: C2): Maps to "Foreign Subsidiary" and is used when Essential structural term in CEFR C2 vocabulary syllabus..
Mixing these up can easily lead to unnatural translations. Refer to the bilingual context cards below to master the boundaries!
Context for "外国語"
私は外国語を勉強しています。
I am studying a foreign language.
Context for "貿易"
私は貿易に興味があります。
I am interested in foreign trade.
Context for "為替換算調整勘定"
私は為替換算調整勘定に興味があります。
I am interested in foreign currency translation adjustment.
Context for "外貨建取引"
私は外貨建取引に興味があります。
I am interested in Foreign Currency Transaction.
Context for "在外子会社"
私は在外子会社に興味があります。
I am interested in Foreign Subsidiary.

Synonym Mastery Challenge

Which Japanese word perfectly fits this blank space?

Fill in the blank: "私は ___ を勉強しています。" (Meaning: "I am studying a foreign language.")
🎉 Correct Answer!

Remember: "外国語" is correct here because it represents "foreign language" in the context: "I am studying a foreign language.".

💡 Practice with AI! Live

Don't just read. Practice speaking this grammar with our interactive AI coach for free!

Try AI Speaking 👉