Learn more about this word
脱線する
Pronounced dassen suru. Literally to derail, like a train. Used when a speaker wanders off the main topic onto something else.
Examples in context
話が少し脱線してしまいました。
The talk has digressed a little.
本題から脱線しないように気をつけます。
I will be careful not to digress from the main topic.
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