What does 説く mean?
説く is a Japanese verb meaning “to explain, to advocate” in English. It can also be translated as “to persuade” depending on context. It is written as 説く in kanji, とく in hiragana, and toku in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
あの男を説き伏せようとするのは、オオカミに道理を説いて聞かせるようなものだ。
You might as well reason with the wolf as try to persuade that man.