(grammar) Clipping of noun substantive.

Part of a text that carries the meaning, such as words and their ordering.

(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.

An adjective "substantive" refers to something that is essential and constitutes the substance of content rather than its style.

Having substance; enduring; solid; firm; substantial.

(law) Applying to essential legal principles and rules of right.

(chemistry, of a dye) Not needing the use of a mordant to be made fast to that which is being dyed.

Depending on itself; independent.

(grammar) Of or pertaining to a substantive.

(military, of a rank or appointment) Actually and legally held, as distinct from an acting, temporary or honorary rank or appointment