1. to create, perform, or do something without preparation or a script
2. to make or create something using whatever materials are available

Examples

• The actor had to improvise when he forgot his lines.
• Jazz musicians often improvise solos during performances.
• When the microphone broke, she had to improvise a solution.
• The chef improvised a meal using leftover ingredients.
• We improvised a tent using blankets and chairs.
• The comedian improvised jokes based on audience suggestions.
• Without a recipe, I had to improvise the seasoning.