Englishfor English speakers
plain
Adjective
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If something is plain, it is clear and easy to see or understand.
The plain and simple truth was that it was John's fault.
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If something is plain, it is simple and undecorated.
This dress is too plain. There is nothing interesting about it at all.
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If someone or something is plain, they are not beautiful or pretty.
plain
Noun
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A place with flat ground, often covered in grass.
Many animals live on the plains of Africa.
copula
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noun
an equating verb (such as 'be' or 'become') that links the subject with the complement of a sentence