"Houses" v. "Chapters" / "Sororities"

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At my college, it's still casually referred to as "houses" even though there's been a significant effort in progress to phase it out, and some members always say "chapters".

This is partially due to a particular Greek Life advisor that raises a huge row every time someone says "house" outside the context of the physical place. (eg. it's OK to say: Which house is the event at?, but not: Which houses are participating in this event?)