interpose
Definitions
To place or insert between one thing and another.
To intervene between parties in order to mediate or reconcile.
To interrupt a conversation or action with a remark or intervention.
Examples
The mediator had to interpose himself between the two arguing parties to prevent a physical altercation.
She decided to interpose a question during the lecture to clarify the professor's complex point.
Synonyms
intervene insert intrude interject mediate arbitrate introduce