sergeant
Abbr. Sgt.
1.
2. a. The rank of police officer next below a captain, lieutenant, or inspector. b. A police officer holding this rank.
3. See sergeant at arms.
[Middle English sergeaunte, a common soldier, from Old French sergent, from Medieval Latin serviēns, servient-, servant, soldier, from Late Latin, public official, from Latin present participle of servīre, to serve, from servus, slave.]
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