![]()  | 
 ![]()  | 
 ![]()  | 
cons /konz/ or /kons/
[from LISP] 1. vt. To add a new element to a specified list, esp. at the top. "OK, cons picking a replacement for the console TTY onto the agenda." 2. `cons up': vt. To synthesize from smaller pieces: "to cons up an example".
In LISP itself, cons is the most fundamental operation for
   building structures.  It takes any two objects and returns a
   `dot-pair' or two-branched tree with one object hanging from each
   branch.  Because the result of a cons is an object, it can be used
   to build binary trees of any shape and complexity.  Hackers think
   of it as a sort of universal constructor, and that is where the
   jargon meanings spring from.
![]()  | 
 ![]()  | 
 ![]()  |