What is the meaning of Improvise?

To make something up or invent it as one goes on; to proceed guided only by imagination, intuition, and guesswork rather than by a careful plan.

inflection of improviser:

1. first/third-person singular present indicative/subjunctive
2. second-person singular imperative

first/third-person singular present indicative/subjunctive

second-person singular imperative

inflection of improvisar:

1. first/third-person singular present subjunctive
2. third-person singular imperative

first/third-person singular present subjunctive

third-person singular imperative

vocative masculine singular of imprōvīsus

inflection of improvisar:

1. first/third-person singular present subjunctive
2. third-person singular imperative

first/third-person singular present subjunctive

third-person singular imperative

inflection of improvisar:

1. first/third-person singular present subjunctive
2. third-person singular imperative

first/third-person singular present subjunctive

third-person singular imperative

Source: wiktionary.org