Englishfor English speakers
backdate
—
verb
make effective from an earlier date
The increase in tax was backdated to January
patent
Noun
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A patent is a way of protecting an invention from being stolen.
—
Thomas Edison had over 2000 patents.
patent
Verb
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To patent means to get a patent on an invention
Thomas Edison patented the light bulb and the phonograph.
material
Noun
—
Material is the things or ideas that are used in making or doing something.
The raw materials for the goods are mostly imported from Canada.
After the earthquake, it took a long time to rebuild because the building materials were often unavailable.
He spent a year researching and gathering material before writing the book.
material
Adjective
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Material things are things in the real world, often money.
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If something is material, it is big and important.