burst in on

phrase

: to suddenly enter a room and interrupt (someone or something)
They just burst in on us without even knocking on the door.

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Cite this Entry

“Burst in on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/burst%20in%20on. Accessed 14 Mar. 2026.

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