If you forgot your password, Cloudwords can send you an email with a new, temporary one that you can use to access your account.
Alternatively, you can just go to the Reset Password page. At that page, you will just need to submit the email address that you use when you login to Cloudwords. After clicking Submit, Cloudwords will send you an email with instructions on how to proceed, together with a temporary password that you can use to access your account and choose a new password.
Please note that for invalid passwords, after several attempts, you will need to click the "Forgot your password" to re-authenticate your account.