Chord / Vocabulary & Text / Overview
Defining vocabulary and text
Everything so far attaches behavior to things that already exist. The
define family is how you add to the language itself: name a condition,
name a bundle of text, teach the parser a verb, mint a trait or an
action other entities can be composed with — or alter the standard
library's grammar itself with extend action and remove from action.
Together with create, these are the language's top-level declarations,
and unlike create they declare kinds and vocabulary, not instances
in the world.