🃏 Flashcard
所為
せい
Tap to reveal meaning
Cause, reason, fault
sei
N2
Tap to test your memory · +10 XP
📊 Word Stats
JLPT Level
N2
Upper-Intermediate · ~6,000 vocab · Natural speech
Kana
せい
Romaji
sei
Words today
0
0 / 10 daily goal
📚 How to Master This Word
Listen & Shadow
Press Hear it, then immediately repeat せい out loud twice. Match the rhythm exactly.
Flashcard First
See the kanji, recall the meaning silently, then flip. This active recall is 3× more effective than reading.
Write It Once
Write 所為 by hand while saying せい and "cause, reason, fault". Motor memory locks it in.
Spaced Review
Save the word and revisit at 10 min, 1 day, 3 days. Save it using the ♥ button above.
🔗 More JLPT N2 Words
❓ Frequently Asked Questions
What does 所為 mean in Japanese?
▼
The word 所為 (せい) means "cause, reason, fault" in Japanese. It appears in JLPT N2 vocabulary.
How do you pronounce 所為?
▼
所為 is read as せい (romaji: sei). Press the 🔊 Hear it button to hear the pronunciation spoken aloud.
What JLPT level is 所為?
▼
所為 is a JLPT N2 vocabulary item. Upper-Intermediate · ~6,000 vocab · Natural speech
How do I remember 所為 quickly?
▼
Use the flashcard on this page to practise active recall: see the kanji first, attempt the meaning from memory, then flip. After getting it right, use the quiz to confirm. Review again at 10 minutes, 1 day and 3 days for long-term retention.
Where can I practise 所為 in sentences?
▼
The example sentence above (from Tatoeba) shows 所為 in context. You can also use Nihoner's AI Chat tool to generate extra practice sentences, or search in the Lexicon for related entries.