"i.e." stands simply for "that is," which written out fully in Latin is 'id est'. "i.e." is used in place of "in other words," or "it/that is

i.e is another way of saying "that is", "which is", "in other words", "which is the same as".,the sentence following i.e is a specific definition or clarification. for example: I will take the eligibility exam i.e. Nurses Licensure Exam. I miss watching the Teletubbies i.e. Dipsy, Laa-Laa, Po, and Tinky Winky.

Can you paste the whole sentences?

This is a good explanation. http://askville.amazon.com/define-correct-usage/AnswerViewer.do?requestId=5300847

i think, it has same meaning with namely...:)