Submitted by György Chityil ... on Fri, 01/19/2018 - 18:37 Hierarchy: Proper NounDescription: {{US|government|military}} {{abbreviation of|Secretary of Defense}}, civilian head of the US Department of Defense.Ngram: SecDefNgram Text: SecDefSource: WiktionaryIssue: 0Wiktionary tag: governmentabbreviation ofNgram Count: 1
