Is match a noun or an adjective?

The Word 'match' is both a noun (match, matches) and a verb (match, matches, matching, matched). The Word 'match' is not an adjective.

The noun 'match' is a singular, common noun.

The noun 'match' is a concrete noun as a Word for a small stick used to ignite a flame; a Word for a physical object.

The noun 'match' is an abstract noun as a Word for a game or sport in which a person or group competes against another; a resemblance or correspondence between one person or thing and another; a seemingly suitable combination of one person or thing with another; a Word for a concept.

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It is a noun, i.e. a book of matches.

It is a verb, i.e. to match patterns.