Meaning
説 (せつ, setsu) is a JLPT N3 noun meaning “theory”.
Kanji in this word
Example sentences 12
私は彼の説が正しいと思う。
I think that his theory is correct.
この本の内容を説明してください。
Please explain the content of this book.
解説
Commentary.
以下で解説。
See below for explanation.
釈迦に説法。
Don't teach fish to swim.
釈迦に説法.
Don't try to teach your grandmother (how) to suck eggs.
説得に努めた。
We tried to persuade him.
彼は演説した。
He delivered a speech.
架空説もある。
There is also a theory that it is fictitious.
本項にて解説。
Explained in this section.
本項目で解説。
To be described in this item.
説明は要りません。
I don't need an explanation.