What is an annex in terms?

Answer 1

Verb

Append or add as an extra or subordinate part, esp. to a document.

Noun

A building joined to or associated with a main building, providing additional space or accommodations.

Answer 2

To annex something means to add on or combine. Buildings can be annexed or joined together by building a covered walkway between them. Schools might be annexed by joining the schools of two neighboring towns.

Answer 3

To add a territory to a country; such an addition is called an annexation.