preopening

adjective

pre·​open·​ing ˌprē-ˈōp-niŋ 

-ˈō-pə-

variants or pre-opening

: occurring before something (such as a store) opens for business

a preopening staff meeting

… regular weekend bake sales that drew pre-opening lines.

—Matthew Odam

Word History

First Known Use

1871, in the meaning defined above