What is another word for aka?

Here are some alternatives to "aka," depending on the context:

Formal:

* Also known as

* Otherwise known as

* Better known as

* Known as

* Called

* Named

Informal:

* Or

* Meaning

* That is

* I.e. (Latin abbreviation for "that is")

* E.g. (Latin abbreviation for "for example")

The best choice depends on the specific situation and the desired level of formality.