(grammar, very rare) to make a word belonging to another part of speech into a substantive (that is, a noun) or use it as a noun

of the essence or essential element of a thing. / (by extension) Constituting the substance of content rather than its style, and thus always nontrivial.

(grammar) Clipping of noun substantive. / Part of a text that carries the meaning, such as words and their ordering.

plural of substantive

Third-person singular simple present indicative form of substantive

In a substantive manner, or to a substantive extent. / (grammar, of a word) Employed as a noun.

The quality or state of being substantive.

plural of substantivity

The state of being substantive. / The ability of a chemical or dye to stick to a target.

substantial; firm