english
1
general::
Phrase(s): in progress under way; happening; developing or moving right now. • Don’t enter the studio. There’s a show in progress. • We now return you to the regularly scheduled show in progress.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Going on, under way, happening, as in She's got another book in progress, or The game was already in progress when I tuned in. [c. 1600]
American Heritage Idioms