Is there a Math symbol that means "associated" I am looking for a Math symbol that means "associated" and I don't mean "associated" as something as complicated as isomorphism or anything super fancy. 
I am looking for a symbol that means something like "$\triangle ABC$ [insert symbol] $A_{1}$" (as in triangle ABC "associated" with area_{1}) Or want to say something like "The eigenvector associated with the eigenvalue" 
You get the idea.

In general, you can use a little chain link symbol since the meaning behind "associated" is "connection" where you are not specifying the type of connection or how they are connected. That will reduce your horizontal space and make sense to people.... ~ is the NOT symbol in logic so never use that! Don't use the squiggle "if, and only if" symbol either because that insinuates that there is some kind of bijection and that is a specific type of connection. Your only caring about if there is  "some kind of connection/association" between two different sets/elements/statements/primitive statements/etc. You should treat it as if it were a logical connective so again, don't use NOT because that would confuse logisticians and pure math people most definitely. The squiggle double arrow would be even more confusing like saying a "loose bijection" which is quite the fancy abstraction that is not what your aiming for... just a simple link between two "things" should be sufficient for what you want.
