Meanings

western regions of China

area zoned for urbanization (urbanisation)

domain (of a function)

boundary

range (of voice)

exclusive fishing zone

rainy area

economic waters or zone

range of skills

storm area (winds of 25mps or more)

diffraction region

area of study (investigation)

problem area

region

dollar area

region of anomalous seismic intensity

high bandwidth

occupation zone

theater missile defense (defence)

range (of a voice or instrument)