/ˈɪmprəvaɪz/
im·pro·vise
BrE /ˈɪmprəvaɪz/
NAmE /ˈɪmprəvaɪz/
[I, T]
to make or do sth using whatever is available, usually because you do not have what you really need
There isn’t much equipment. We’re going to have to improvise.
~ sth
We improvised some shelves out of planks of wood and bricks.
[I, T]
to invent music, the words in a play, a statement, etc. while you are playing or speaking, instead of planning it in advance
‘It’ll be ready some time next week, I expect,’ she said, improvising.
~ on sth
He improvised on the melody.
~ sth
an improvised speech
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im·pro·visa·tion
BrE /ˌɪmprəvaɪˈzeɪʃn/
NAmE /ɪmˌprɑːvəˈzeɪʃn/
[U, C]