* Language: The most common word for "English" as a language is ഇംഗ്ലീഷ് (Inglish).
* Nationality: For "English" referring to someone from England, you would use ഇംഗ്ലീഷുകാരൻ (Inglishukaaran) for a man and ഇംഗ്ലീഷുകാരി (Inglishukaari) for a woman.
* English person: A more general term for someone from England would be അംഗ്ലീയർ (Angliyar).
* English language: If you want to emphasize the language, you can use ഇംഗ്ലീഷ് ഭാഷ (Inglish bhasha) which literally means "English language."
So, depending on the context, you could use ഇംഗ്ലീഷ്, ഇംഗ്ലീഷുകാരൻ/ഇംഗ്ലീഷുകാരി, അംഗ്ലീയർ, or ഇംഗ്ലീഷ് ഭാഷ.