Annexation

Noun

 * 1) the act of annexing, or territories that have been annexed
 * 2)  the legal merging of a territory into another body

Thesaurus
abstraction; accession; accessory; accompaniment; addenda; addendum; additament; addition; additive; additory; additum; adhesive; adjunct; adjunction; adjuvant; affixation; agglutination; angary; annex; annexure; appanage; appendage; appendant; appropriation; appurtenance; appurtenant; attachment; augment; augmentation; binding; bond; boosting; clasping; coda; collectivization; commandeering; communalization; communization; complement; concomitant; confiscation; continuation; conversion; conveyance; corollary; distraint; distress; embezzlement; eminent domain; execution; expropriation; extension; extrapolation; fastener; fastening; filching; fixture; fraud; garnishment; girding; graft; hooking; impoundment; impressment; increase; increment; joining; junction; juxtaposition; knot; lashing; levy; liberation; lifting; ligation; nationalization; offshoot; pendant; pilferage; pilfering; pinching; poaching; prefixation; reinforcement; right of angary; scrounging; sequestration; shoplifting; side effect; side issue; snatching; sneak thievery; snitching; socialization; splice; stealage; stealing; sticking; suffixation; superaddition; superfetation; superjunction; superposition; supplement; supplementation; swindle; swiping; tailpiece; theft; thievery; thieving; tieing; undergirding; uniting