Used when someone holds a differing view or raises an objection, often in discussions, meetings, or formal contexts. Common in phrases like 異論がある (to have an objection) or 異論を唱える (to voice a differing opinion).
I have an objection to that proposal.
彼は会議で異論を唱えた。
He raised a different opinion at the meeting.
Does anyone have an objection to this plan?
He voiced his objection to that policy.
I have no objection to that decision.
An unexpected objection came up in the meeting.