The く-form of 近い and 多い can be used as nouns and adverbs.

For most adjectives, however, the く-form is only used as an adverb.

So why do these exceptions exist?
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2020-11-22T02:55:13.083
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2020-11-22T02:55:13.083
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question
grammar conjugations adjectives adverbs i-adjectives
Why are 近く and 多く nouns?