Array won't display after split it form JSON file [duplicate]

I am new to the world of JavaScript and JSON. I have a JSON file with words in multiple languages. What I want to do is to group all words by same language, so that each of it will be in a separate array. Goal is that if I choose 'French' as langauge I get word = ['Bonjour','comment', 'ca', 'va']

This is my JSON file

{
    "Sheet1": [
        {
            "English": "Hello",
            "French": "Bonjour"
        },
        {
            "English": "my",
            "French": "mon"
        },
        {
            "English": "friends",
            "French": "ami"
        }
    ]
}

This is the code I have.

const my_array = ["English", "French"]
const word = []
function readJson()
{
    fetch('./data.json')
    .then(response => response.json())
    .then(data => {
        for (let index = 0; index < data.Sheet1.length; index++) {
            word.push(data.Sheet1[index][our_language])
        }
    })
    console.log(word)
    console.log(word[0])// Want to display first element, but can't
    console.log(word[1])//Want to display second element, but can't
}
readJson()
console.log(word)

Problem is that I can't display to console each element of this array separately, but I can see that element are present in the whole array.

Can you explain what is the problem, and how I can solve it.