途と端たん

と

た

ん

Common wordJLPTN3Freq.FrequencyTop 10,000

Meanings

Used in the pattern 〜た途端（に）to mean 'just as something happened' or 'the very moment after'. Emphasizes immediate, often unexpected, consequence.

〈動どう詞し〉た途と端たん（に）〈事こと〉the moment/just as one thing happened, another (often unexpected) thing followed
家いえを出でた途と端たんに、雨あめが降ふり出だした。
The moment I left the house, it started raining.
〈動どう詞し〉た途と端たん、〈事こと〉right as one thing happened, something surprising happened
彼かの女じょの顔かおを見みた途と端たん、緊きん張ちょうして声こえが出でなかった。
The moment I saw her face, I got so nervous I couldn't speak.

瞬しゅん間かんN3
瞬間 is a general noun meaning 'moment' or 'instant', while 途端 is specifically used in the pattern 〜た途端（に）to stress that something happened immediately after another action.
や否いなや
や否や is a more formal, literary way of saying 'as soon as', while 途端 is common in everyday speech and writing.
矢や先さきN1
矢先 (as in 〜た矢先に) also marks 'just when' something happened, but often implies the new event interrupted or contrasted with what was about to happen, whereas 途端 simply marks immediate succession.

発ほっ端たんN1
発端 shares the kanji 端 with 途端 but means 'the beginning or origin' of something, not 'the very moment after'.

途と端たんUsage33%
Standard kanji spelling; high priority.
とたんUsage66%
Kana spelling is common in everyday writing, especially in casual contexts.
トタンUsage1%

Compound of 途 (to, 'way' or 'path') and 端 (tan, 'edge' or 'end'), literally 'the edge of the path', figuratively 'the very moment'.