What does ZPA stand for?

Lachiguiri Zapoteco - Language code (ETLW)

Zero Period Acceleration - Nuclear energy (NRCH)

Zero-Point Acceleration (SAUS)

Zeus Program Analysis - Missiles

Zimbabwe People's Army - Political party (PSAP)

Zone of Polarizing Activity - Embryology, genetics

Zoological Parks and Aquariums (SAUS)