Improvised a dinner from what I found in the refrigerator.
Improvise a solution to the problem; improvise variations on a melody.
An example of to improvise is someone having to give a speech without any notice.
There isn't much in the cabin. We'll just have to improvise.
To improvise a solution to a problem.
To improvise a bed out of leaves.
He had no speech prepared, so he improvised.
They improvised a simple shelter with branches and the rope they were carrying.
She improvised a lovely solo.