a particular fact, event, or situation
Torture was, and remains, illegal under US law in every instance without exception.
the court of first instance is the first court that hears a case before it goes through the appeals courts
The appellate court reviewed the decision of the court of first instance.
the term for instance is used to give an example of a fact, event, or situation that has just been mentioned; for example
No country is really developed, for instance, if it has money but no technology.