Grammar Help Required .. **word - INSTANCE**

Tell us what’s happening:
May you please help me with understanding some grammar? My current challenge says, " The Array instance can be accessed in the myMap method using this ."

In layman terms, what is the Array instance?
I have done some reading on this subject and I seek to finally understand the word instance.

  **Your code so far**

// The global variable
const s = [23, 65, 98, 5];

Array.prototype.myMap = function(callback) {
const newArray = [];

return newArray;
};

const new_s = s.myMap(function(item) {
return item * 2;
});

console.log(new_s)
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36

Challenge: Implement map on a Prototype

Link to the challenge:

it is the array on which the method is used.

In this case

this is s

I seek to understand the word instance in laymen terms.

The word instance was used differently to what I previously understood it as.

Instance Definition & Meaning - Merriam-Webster

to instantiate is a technical verb, so instance stays in programming language

What is instantiation? - Definition from WhatIs.com (techtarget.com)