instanceswhich
instanceswhich is a term that does not appear to have a widely recognized or established meaning in standard English, programming, or technical jargon. It is possible that it is a neologism, a typo, or a term specific to a very niche context.
If "instanceswhich" is intended to refer to a specific concept, further clarification on its origin or intended
In programming, the term "instance" refers to a specific occurrence of an object created from a class.