10/40 Window

proper noun

The geographic region between 10 degrees north and 40 degrees north latitude, especially when considered as a target for Christian missionary work.

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Meanings

proper nounthe 10/40 Window
  1. The geographic region between 10 degrees north and 40 degrees north latitude, especially when considered as a target for Christian missionary work.

    This intercessor's guide features maps and information on each 10/40 Window nation, covering trends, religions, people groups, and history.

    1995, George Otis, Mark Brockman, Strongholds of the 10/40 window, →ISBN
    2 more examples

    All three major non-Christian religions — Islam, Hinduism, and Buddhism — originated in the 10/40 Window and have their greatest strength there.

    1996, Gailyn Van Rheenen, Missions: Biblical Foundations and Contemporary Strategies, →ISBN, page 209

    The primary but not exclusive focus of AD2000 became the 10/40 Window, a term coined for the area of the world between ten degrees and forty degrees north latitude, stretching from northern Africa and southern Spain to Japan and the northern Philippines.

    2003, Jon Bonk, Between Past and Future, →ISBN, page 21
Cite this entry
APA

10/40 Window. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/10%2F40%20Window

MLA

“10/40 Window.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/10%2F40%20Window. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “10/40 Window,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/10%2F40%20Window.

Source: 10/40 Window on Wiktionary, CC BY-SA 4.0.