annexation

noun

an·​nex·​a·​tion ˌa-ˌnek-ˈsā-shən 

plural annexations

1

: the act of annexing something or the state of being annexed : the addition of an area or region to a country, state, etc.

The Senate rejected the Hawaiian reciprocity treaty, the purchase of the Virgin Islands from Denmark, the annexation of Santo Domingo and the annexation of Samoa.

—Arthur M. Schlesinger, Jr.

In the early part of the 20th century, Chinese writers generally dated the annexation of Tibet to the 18th century.

—Elliot Sperling

2

: something that is annexed

… defended their annexations with fire and sword.

—George Bernard Shaw

annexational

ˌa-ˌnek-ˈsā-sh(ə-)nəl 

adjective

annexationist

ˌa-ˌnek-ˈsā-sh(ə-)nist 

noun

Examples of annexation in a Sentence

Recent Examples on the Web

The council will consider the project’s zoning, rear yard coverage and annexation requests at a future meeting. —Marie Wilson, Chicago Tribune, 5 Mar. 2026

The board approved first reading of the annexation along with a preliminary development plan and a conditional use permit to allow triplex buildings at its Tuesday night meeting. —Jenna Ebbers, Kansas City Star, 4 Mar. 2026

The land is near Parker's Pradera neighborhood and the Crowsnest properties currently seeking annexation into Castle Pines. —Olivia Young, CBS News, 27 Feb. 2026

The Village Farms Development Team recently formed a political committee to advocate for Measure V, an annexation vote required under Davis’s Measure J-R-D growth-control ordinance, will appear on the city’s June 2 ballot. —Daniel Lempres, Sacbee.com, 24 Feb. 2026

Word History

First Known Use

15th century, in the meaning defined at sense 1

Rhymes for annexation

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation