I.e. (conjunction)

1. Used to add further information or clarification to a statement, often used to introduce examples.
2. Used to explain or rephrase a preceding statement.

Origin:

Late 16th century: latin, "that is".

Examples:

1. The company specializes in outdoor equipment, i.e. camping gear and hiking boots.
2. She is allergic to nuts, i.e. almonds, walnuts, and pecans.
3. The students are required to wear uniforms, i.e. white shirt, black pants, and tie.
4. The store will be closed on Sundays, i.e. no services will be available.
5. The test will cover material from chapters 1-5, i.e. material from the first half of the book.