What does Waves stand for?

Women Accepted for Volunteer Emergency Service - Military (WDAA)

Water Availability and Vulnerability of Ecosystems and Social Structures (SAUS)

Waveform and Vector Exchange Specification (AGLO)

Weight and Value Engineering System - Computer science

Women Accepted for Volunteer Emergency Service - US Navy Women's Reserve - World War II and later

Women Appointed Volunteer Emergency Services - British - World War II

Women's Audio Visual Education Scheme (BUAC)

Worker and Visitor Entrance System - Secret Service (GFGA)