Improv Meaning in Bengali

What is the meaning of word Improv in Bengali/Bangla ?

Meaning of Improv in Bangla is : উন্নতি (u n . n o . t i)

Defenition of word Improv

Example

The challenge was to integrate script and improv, so the improv drives the script and the script illuminates the improv .

Other Meaning of Improv