handle

In Douglas Carl Engelbart AUGMENTING HUMAN INTELLECT: A Conceptual Framework:

The grasping and handling done by these mechanisms can often be facilitated if the concept is given an explicit "handle" in the form of a representative symbol.

Related:

• (4.5.2.3) Get the tools of thinking
• 6.2.6 Summary of verbalization
• (Column) Naming the pattern