improvise

Từ điển Oxford Advanced Learner 8th

im·pro·vise [improvise improvises improvised improvising] BrE [ˈɪmprəvaɪz] NAmE [ˈɪmprəvaɪz] verb
1. intransitive, transitive 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.
2. intransitive, transitive 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
Derived Word: ↑improvisation
Verb forms:

Word Origin:
early 19th cent. (earlier (late 18th cent.) as improvisation): from French improviser or its source, Italian improvvisare, from improvviso ‘extempore’, from Latin improvisus ‘unforeseen’, based on provisus, past participle of providere ‘make preparation for’.

Example Bank:
•We hastily improvised a screen out of an old blanket.
•You can quickly improvise a shield to protect your arm.

• Từ đồng nghĩa / Synonyms:
  extemporize, improvize, ad-lib, extemporise