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synonym Comparative
拡大
VS
フーリエ級数展開

Differences Between "拡大" and "フーリエ級数展開"

Option A
拡大
Meaning
expansion, enlargement, magnification
Reading
かくだい (kakudai)
Syllabus Level
N3
Practical Example
市場がさらに拡大しました。
The market expanded even further.
Option B
フーリエ級数展開
Meaning
Fourier series expansion
Reading
フーリエきゅうすうてんかい (fu-riekyuusuutenkai)
Syllabus Level
C2
Practical Example
私はフーリエ級数展開に興味があります。
I am interested in Fourier series expansion.

Which one to use?

Select the correct Japanese word for this context

Which word fits this context: "(expansion, enlargement, magnification)"?
🎉 正解 / Correct!
使い分け解説:
- 拡大: Often used when talking about increasing the size, scale, or scope of something, like a company, market, or image. (規模や範囲、画像を大きくする際に使われることが多い。)
- フーリエ級数展開: Essential structural term in CEFR C2 vocabulary syllabus. (CEFR C2語彙シラバスにおける重要表現です。)
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