annexe /ˈænɛks/noun 4verb 4forms 2 noun4 •An addition, an extension. •An appendix to a book or document. •An addition or extension to a building. •An addition to the territory of a country or state, from a neighboring country or state, normally by military force. verb4 •To add something to another thing, especially territory; to incorporate.The ancient city of Petra was annexed by Rome. •To attach or connect, as a consequence, condition, etc.Annexed to my feeling of guilt was a sense of having let my familiy down. •To join; to be united. •To take something without permission (informal)I returned to resume my place but my assistant had already annexed my chair. formsannexed · annexes