noun, noun or participle which takes 'suru', intransitive verb
expression of one's views; declaration; statement
Formal or literary term for publicly stating one's opinion or position. Often used in political, academic, or official contexts.
彼は会議で自説を立言した。
He expressed his views at the meeting.
Compound of 立 (establish, set up) and 言 (words, speech). The exact historical derivation is uncertain, but the kanji suggest the idea of 'setting forth one's words'.