This package provides a type of global~\tt{let}. The term ``define'' is consistent with the influence of the language Scheme on this system. One a primitive is provided, this abstraction can be modified to make use of it. This addresses the challenge with defining arbitrary values. TAME was designed for a map-reduce style of computation that maintains index assocaitions. This makes it easy to reason about data flow. Consequently, arbitrary definitions should be used sparingly until they become a core feature of TAME.