expiration of term of service
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Trademark.
Educational Testing Service.
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abbrev
Educational and Training Services, a branch of the Adjutant Generals Corps of the British Army
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ETS (no periods) or E.T.S.,
Educational Testing Service (a United States educational service that develops school and college examinations): ยป
E.T.S. is the author of the familiar College Boards tests and the somewhat less familiar Advanced Placement Examinations, which let able high school students skip certain required freshman courses (Time).
Useful english dictionary. 2012.