also RAF, initialism (acronym) for Royal Air Force, founded 1918 by consolidation of Royal Flying Corps and Royal Naval Air Service.
updated on June 28, 2010
英语词源词典收录了45867条英语词源词条，基本涵盖了全部常用英语词汇的起源、历史，是研究英语词汇或通过词源学英语的必备工具。