To state or express one's opinion (out loud), especially in discussions or meetings.
会議で私も意見を言うつもりです。
I plan to state my opinion at the meeting, too.
遠慮せずに率直な意見を言ってください。
Please don't hold back — say your honest opinion.
彼は自分の意見を言うのが苦手だ。
He has trouble expressing his opinions.