意見 (iken) means “opinion” | MotiTan Japanese Dictionary

More examples

クラスで意見を言います。ku ra su de i ken o i i ma su

I give my opinion in class.

その計画について意見があります。so no kei kaku ni tsu i te i ken ga a ri ma su

I have an opinion about that plan.

Marks a person's view or judgment about a matter, especially when it is stated for others to consider.

考えkangae: A personal thought or view about a matter.
主張shuchō: A view or position that a person presents as true or important.

ある事柄についての考えや判断を、言葉などで表したもの。a ru koto gara ni tsu i te no kanga e ya han dan o koto ba na do de arawa shi ta mo no

The Sino-Japanese word 意見 (iken) combines 意 (i, "meaning") with 見 (ken, "seeing") to describe a view or judgment about a matter.

In Japanese conversation, 意見 (iken) can mean both a personal view and a view offered during a discussion, so it is not limited to a private belief.