Missions Terminology

10/40 Window

A term coined by Christian missionary strategist Luis Bush in 1990 to refer to those regions of the eastern hemisphere, plus the European and African part of the western hemisphere, located between 10 and 40 degrees north of the equator, a general area that in 1990 was purported to have the highest level of socioeconomic … Learn More »


The attribution of soul to inanimate objects and natural phenomena. Animism accepts the reality of spiritual forces and beings.


What is considered to be true within a culture. A distinction should be drawn between (a) operating beliefs – beliefs that affect values and behavior; and (b) theoretical beliefs – beliefs that have little actual impact on values and behavior.

Bicultural Bridge

The relationship between missionaries and their national counterparts.


An ability to move between two cultures (home and adopted) and to live in either without experiencing culture shock.

Church Planting Movements

Church planting in a rapid growth rate can be considered a movement. In a CPM, indigenous churches plant more churches within a people group or geographic area. A church will sponsor formation of multiple spinoff churches that will them-selves reproduce new churches very quickly, generally with common teachings and doctrine. It is different from traditional … Learn More »

Closed Country

A country that does not allow missionaries to enter. These are sometimes referred to as Creative Access Countries. The people who serve as International Workers have a vocation or business or some legitimate means of being there.


A commitment to setting defined goals and developing specific means to accomplish the task of the Great Commission within a specified time. “Closure strategy says it is not enough for us today to go across the world and do a good job. We must work towards finishing the task.”


Colonialism has a long history where one territory has been subjugated and exploited by another.


The process of taking the Gospel which has been received in one’s own culture to a different culture and effectively communicating its unchangeable message in a form that is culturally understandable and acceptable to the receiving culture. The Gospel is not changed, but only presented in a manner that is not culturally offensive.