Educational Testing Service.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for ets
So they called in ETS, which conducted an investigation that lasted several months.
Yas, ets a fine evenin--a fine evenin to put geese-feathers onto rebel birds like ye!The Dare Boys in Virginia|Stephen Angus Cox
The cheild's my cheild, not his, and et shall be called for ets father.Beggars on Horseback|F. Tennyson Jesse