To state or express something in words; to say or mention (an opinion, fact, etc.).
会議で彼は問題点を率直に述べた。
At the meeting he frankly stated the problems.
感想を一言で述べると、期待外れだった。
To sum up my impression in one word: it was disappointing.
彼女は自分の考えをはっきり述べるタイプだ。
She is the type of person who expresses her thoughts clearly.