1. to place or insert between two things or in the middle of something
2. to intervene or step in between parties, especially to prevent conflict or provide assistance
3. to interrupt a conversation or discussion by making a comment or objection

Examples

• The teacher interposed herself between the fighting students.
• He interposed a brief comment during the heated debate.
• The mountain range interposes itself between the two valleys.
• She interposed an objection to the proposed plan.
• The mediator interposed to help resolve the dispute.
• A thick wall interposes between the two rooms.
• The diplomat interposed to prevent the conflict from escalating.