
Sophia E. answered 08/14/19
Oxford Graduate Experienced in Tutoring Latin and Attic Greek
The latin abbreviation i.e. stands for "id est" while e.g. stands for "exempli gratia." i.e. is used for lists of examples that are complete, while e.g. is used for a list of examples that is not necessarily exhaustive. Additionally, i.e. is more commonly used for rephrasing/providing details about something in a sentence, while e.g. is used for making lists.
For example:
As a classical languages major, I am required to learn certain ancient languages, i.e. Latin and Greek.
The term "classical languages" can include many languages other than Latin and Greek, e.g. Arabic and Sanskrit.