T-Day

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English[edit]

Noun[edit]

T-Day (plural T-Days)

  1. (US, military) Training Expansion Day; the effective day coincident with Presidential declaration of national emergency and authorization of partial mobilization (not more than 1,000,000 personnel exclusive of the 200,000 callup).
  2. (US, slang) Thanksgiving Day (or, humorously, Turkey Day)