in progress meaning

• 1. Going on
  2. In course of happening or being produced
• 
  [American idiom]
  happening now; taking place at this time.
  • You can't go into that room. There is a meeting in progress.
  • Please tell me about the work you have in progress.
  
• 
  [American slang]
  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.

• progress:    Noun: progress&nbs ...
• progress to:    Verb: progress toR ...
• knight's progress:     noun  I ...

Examples

1. persist in progress and oppose retrogression!
2. preparations for the meeting are in progress.
3. do n't leave when the meeting is in progress.
4. please be quiet -- recording in progress.
5. the road construction work is in progress.