If you choose to delete your website created with Hostinger Website Builder, the associated domain name isn't deleted; it's just disconnected or released. This means you're free to use the domain with another website.

Once you connect that domain to another website hosted at Hostinger, the DNS records are also automatically re-added, so you wouldn't need to do it manually 🎉

Overall, domains have a specific life cycle and cannot be easily canceled or deleted. If you no longer wish to use a domain registered at Hostinger, you can disable its auto-renewal and let it eventually expire.