The phrase "House on Fire" in the story's title most likely refer to "the breaking up of the family and their home".
Phrases means a short written or spoken expression. It could also mean a word or group of words that functions as a single unit in the syntax of a sentence, usually consisting of a head, or central word, and elaborating words.
The phrase "house on fire" from the story meant the misunderstanding or argument between members of the family which could lead to separation.
Learn more about phrases:
https://brainly.com/question/10707375