🦅 Project Eagle
Quintuple VS

Synonym Boundary: "外国語", "在外営業活動体", "外貨建取引", "在外子会社", "外国為替証拠金取引"

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

在外営業活動体

ざいがいえいぎょうかつどうたい (zaigaieigyoukatsudoutai)
C2 / CEFR
Japanese Option C

外貨建取引

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

在外子会社

ざいがいこがいしゃ (zaigaikogaisya)
C2 / CEFR
Japanese Option E

外国為替証拠金取引

がいこくかわせしょうこきんとりひき (gaikoku kawase shoukokin torihiki)
C2 / CEFR

Quintuple VS Nuance Contrast & Social Differences

When expressing "foreign" in Japanese, you must carefully distinguish between "外国語", "在外営業活動体", "外貨建取引", "在外子会社", "外国為替証拠金取引" 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..
  • 在外営業活動体 (ざいがいえいぎょうかつどうたい (zaigaieigyoukatsudoutai) - Level: C2): Maps to "foreign operation" 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..
  • 外国為替証拠金取引 (がいこくかわせしょうこきんとりひき (gaikoku kawase shoukokin torihiki) - Level: C2): Maps to "foreign exchange margin trading (Forex)" 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 "在外営業活動体"
私は在外営業活動体に興味があります。
I am interested in foreign operation.
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.
Context for "外国為替証拠金取引"
私は外国為替証拠金取引に興味があります。
I am interested in foreign exchange margin trading (Forex).

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 👉