AP Human Geography Vocab Modules 21–24 Complete Study Guide and Key
Terms Revision Notes
absorbing barrier - correct answer ✔✔A barrier that completely halts diffusion
permeable barrier - correct answer ✔✔A barrier that slows diffusion, but still allows some
partial or weakened diffusion
pidgin - correct answer ✔✔A trade language, characterized by a very small vocabulary derived
from the languages of at least two or more groups in contact
creole - correct answer ✔✔A combined language that has a fuller vocabulary than a pidgin
language and becomes a native language
creolization - correct answer ✔✔The linguistic process where languages converge and create
new languages and forms of communication
lingua franca - correct answer ✔✔A language of communication and commerce spoken across a
wide area where it is not a mother tongue
bilingualism - correct answer ✔✔The ability to speak two languages fluently
empire - correct answer ✔✔A sovereign political entity that seeks to expand beyond its origin
land to control more territory politically and/or economically
imperialism - correct answer ✔✔The motivating impulse to control greater amounts of territory
Terms Revision Notes
absorbing barrier - correct answer ✔✔A barrier that completely halts diffusion
permeable barrier - correct answer ✔✔A barrier that slows diffusion, but still allows some
partial or weakened diffusion
pidgin - correct answer ✔✔A trade language, characterized by a very small vocabulary derived
from the languages of at least two or more groups in contact
creole - correct answer ✔✔A combined language that has a fuller vocabulary than a pidgin
language and becomes a native language
creolization - correct answer ✔✔The linguistic process where languages converge and create
new languages and forms of communication
lingua franca - correct answer ✔✔A language of communication and commerce spoken across a
wide area where it is not a mother tongue
bilingualism - correct answer ✔✔The ability to speak two languages fluently
empire - correct answer ✔✔A sovereign political entity that seeks to expand beyond its origin
land to control more territory politically and/or economically
imperialism - correct answer ✔✔The motivating impulse to control greater amounts of territory
