improvise has definitions from the field of music
1
[ verb ] (music) perform without preparation

Examples

"he extemporized a speech at the wedding"

Used in print

(Irving Stone, The Agony and the Ecstasy....)

He improvised as he went_along , completing a life-size clay figure , then bought yards of an inexpensive material from a draper , wet the lightweight cloth in a basin and covered it over with clay that Argiento brought from the bank of the Tiber , to the consistency of thick mud .

Sangallo studied the drawings and improvised a trestle couch .

(Arthur Miller, "The Prophecy," in The Best...)

Now she could let out the three parakeets without_fear they would be stepped_on or that Stowey would let them out one of the doors ; she could dust the plants , then break_off suddenly and pick_up an old novel and read from the middle on ; improvise cha-chas on the harp ; and finally , the best part of all , simply sit at the plank table in the kitchen with a bottle of wine and the newspapers , reading the ads as_well_as the news , registering nothing on her mind but letting her soul suspend itself above all wishing and desire .

2
[ verb ] manage in a makeshift way; do with whatever is at hand

Synonyms

extemporize

Examples

"after the hurricane destroyed our house, we had to improvise for weeks"

Related terms

cope improvisation

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