| Abstract Syntax Tree (AST) | Data structures which closely match the syntax of some code. |
| GI | Short for GObject Introspection. |
| Glib | A C library with common utilities like hash tables, linked lists, and portability aids. Also contains the GObject system. |
| Glib-rs | The Rust bindings for Glib and GObject. They include macros and wrappers for the GType system. |
| GObject | An object system for C, used by GTK+ and GNOME programs. It adds classes to C. |
| GObject Introspection (GI) | A system which generates machine-readable descriptions of the API in libraries which contain GObjects. These descriptions can be used to generate language bindings automatically. Overview of GObject Introspection |
| GType | A dynamic type system for C, which is the foundation for GObject. |
| procedural macro | User-supplied code that runs in the Rust compiler; it lets one extend the language with a custom parser and code generator. |