1. Proper noun.  an international SIGINT network to monitor and gather intelligence from satellite trunk communications.
  2. Noun.  A level or rank in an organization, profession, or society.
  3. Noun.  (military) A formation of troops, ships, etc. in diagonal parallel rows.
  4. Verb.  To form troops into an echelon.

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This entry was last updated on RefTopia from its source on 3/20/2012.