Englishfor English speakers
extensive
Adjective
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Extensive research, experience, damage, etc. is large in size, amount, or degree.
There has been extensive research into ways to improve schools.
She has extensive experience working with these computer systems.
After the wild fires, the damage was extensive.
form
Noun
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Form is the shape or structure of a person or a thing.
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A thing that makes shapes to other things, as in a mold.
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Form is a blank document which is to be filled in by a person.
To join with the club, please fill in this application form.
form
Verb
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If you form something, you give it shape or structure.