This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

講師は本題から脱線してしまった。

Sentence Analyzer

講師 本題 から 脱線してしまった

English Translation

The speaker wandered away from the subject.

Furigana

講師(こうし)本題(ほんだい)から脱線(だっせん)してしまった。

Romanji

Kōshi wa hondai kara dassenshiteshimatta.

Words

講師 (こうし)
lecturer
()
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
本題 (ほんだい)
main question; real issue at hand
から (から)
from (e.g. time, place, numerical quantity); since; from (originator); by; because; since; out of (constituent, part); through (e.g. window, vestibule); after; since
脱線 (だっせん)
derailment; digression; deviation

Kanji

Reading: コウ
Meanings: lecture, club, association
Readings: シ、 いくさ
Meanings: expert, teacher, master, model, exemplar, army (incl. counter), war
Readings: ホン、 もと
Meanings: book, present, main, origin, true, real, counter for long cylindrical things
Reading: ダイ
Meanings: topic, subject
Readings: ダツ、 ぬ.ぐ、 ぬ.げる
Meanings: undress, removing, escape from, get rid of, be left out, take off
Readings: セン、 すじ
Meanings: line, track