cid Meaning, Definition & Usage

  1. noun the United States Army's principal law enforcement agency responsible for the conduct of criminal investigations for all levels of the Army anywhere in the world
    Criminal Investigation Command.

WordNet

Cid noun
Etymology
Sp., fr. Ar. seid lord.
Definitions
  1. Chief or commander; in Spanish literature, a title of Ruy Diaz, Count of Bivar, a champion of Christianity and of the old Spanish royalty, in the 11th century.
  2. An epic poem, which celebrates the exploits of the Spanish national hero, Ruy Diaz.

Webster 1913