Hello,
Thank you for contacting Rank Math support today and bringing your concern to our attention.
To edit your meta description, you can access the SEO meta box and click on the button “Edit Snippet”. Please refer to my screenshots below:
Gutenberg:

Classic:

If you wish to edit it globally, you may head over to your WordPress Dashboard > Rank Math > Titles & Meta > [select your post type]:

Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.
Thanks, but I wanted to change the meta description of my website, my homepage URL but not any post or page. So, that was my question actually
Hello,
You can edit your homepage and add the meta description in the meta box. If you are using the latest posts as the homepage then you can add a meta description from WP Dashboard > Rank Math > Titles & Meta > Homepage > Homepage Meta Description.
Hope this helps. Let us know if you need any other assistance.
Thanks.
Thanks a lot it’s resolved.
Hello,
Glad that helped.
Please feel free to reach out to us again in case you need any other assistance.
We are here to help.
Thank you.