im·pro·vise 
/ˈɪmprəˌvaɪz/ verb
im·pro·vis·es; im·pro·vised; im·pro·vis·ing /ˈɪmprəˌvaɪz/ verb 1 : to speak or perform without preparation [no obj] ▪ If you forget any of your lines, try to improvise. ▪ Good jazz musicians know how to improvise. [+ obj] ▪ He had to improvise his opening speech when he forgot his notes. ▪ The trumpet player performed an improvised solo. 2 [+ obj] : to make or create (something) by using whatever is available
▪ I wasn't expecting guests, so I had to improvise a meal with what I had in my refrigerator.
▪ I wasn't expecting guests, so I had to improvise a meal with what I had in my refrigerator.
— im·pro·vi·sa·tion /ɪmˌprɑ:vəˈzeɪʃən/ noun, plural im·pro·vi·sa·tions
[noncount] ▪ an actor who is good at improvisation [count] ▪ His performance featured several clever improvisations.
/ɪmˌprɑ:vəˈzeɪʃən/ noun, plural im·pro·vi·sa·tions [noncount] ▪ an actor who is good at improvisation [count] ▪ His performance featured several clever improvisations.
— im·pro·vi·sa·tion·al /ɪmˌprɑ:vəˈzeɪʃənl̟/ also im·pro·vi·sa·to·ry /ˌɪmprəˈvaɪzəˌtori, Brit ˌɪmprəˈvaɪzətri/ adjective
▪ an improvisational performance ▪ improvisational theater
/ɪmˌprɑ:vəˈzeɪʃənl̟/ also im·pro·vi·sa·to·ry /ˌɪmprəˈvaɪzəˌtori, Brit ˌɪmprəˈvaɪzətri/ adjective ▪ an improvisational performance ▪ improvisational theater
— im·pro·vis·er also chiefly US im·pro·vis·or /ˈɪmprəˌvaɪzɚ/ noun, plural im·pro·vis·ers also im·prors [count]
▪ jazz improvisers
▪ jazz improvisers
