A noncommissioned officer in the US Army of a rank above staff sergeant and below master sergeant.
- They are having a debate during the break, trying to figure out which ranks are highest and lowest among sergeant, staff sergeant, sergeant first class.
- Since no one appeared, he decided to stop and see if he could do something, said a retired Army sergeant first class who served 29 years in the military.
- If they want to become a sergeant first class, a chief warrant officer, or a field grade officer, for example, they are going to have to plan on some extra days, attend meetings and planning conferences, and take on additional schooling.
For editors and proofreaders
Syllabification: ser·geant first class
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