interject

This term describes the act of inserting a remark into a conversation, often characterized by a sudden or abrupt quality. It carries a nuance of precision, suggesting a brief insertion rather than a long-winded takeover of the discussion. While it can be neutral, it often implies a slight disruption of the existing flow of speech.

In written contexts, it refers to the placement of a comment or an aside within a larger narrative or argument. This usage emphasizes the structural addition of a thought that deviates from the primary line of reasoning.