thinga
Thinga is a generic placeholder term used in writing, teaching, and design to refer to an unspecified object, idea, or action. It functions as a neutral stand-in that can be replaced by any referent without affecting the grammatical structure of a sentence or the logic of an example.
Origin and variants: The name is formed as a common English word, sometimes capitalized as ThingA, Thing-A,
Contexts of use: In education, thinga appears in exercises about classification, sequencing, or argument structure. In
Limitations: Because thinga is deliberately abstract, it carries no inherent properties or relations beyond those assigned
See also placeholder, metasyntactic variable, and generic term.