UPG (Unreached People Group)
UUPG (Unengaged Unreached People Group)
Least-Reach People Group (LPG)
Population Segment (City, or subset of an ethnolinguistic people)
Best Practices
Fruitful Practices
SCP
CPM
Strategy Coordinator
Partnering/Partnership
church/house church/home group
contextualization/syncretization
C1 – C5
Insider movement(s)/church-planting movements