Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Another option is to use email lookup tools like Hunter.io or VoilaNorbert which can help you find email addresses associated with a particular domain or organization.
Source: https://www.devicemag.com/hidden-email-account-on-android/