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What does SDI stand for?

SDI stands for Senior Drill Instructor

This definition appears frequently and is found in the following Acronym Finder categories:

  • Military and Government

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We have 334 other meanings of SDI in our Acronym Attic

Samples in periodicals archive:

[ILLUSTRATION OMITTED] "I was a senior drill instructor in the Army, and he talked worse than I ever talked to any of my trainees," Willis said, adding that the official yelled at and intimidated a pair of elderly women who appeared confused about where to go.