To interrupt a conversation by introducing a different subject or making a comment.
To intervene in a dispute, or in a conversation.
To insert something (or oneself) between other things.
To be inserted between parts or things; to come between.
To offer (one's help or services).
To disturb or halt (an ongoing process or action, or the person performing it) by interfering suddenly.
To assert to (a computer) that an exceptional condition must be handled.
To divide; to separate; to break the monotony of.
An event that causes a computer or other device to temporarily cease what it was doing and attend to a condition.