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|Noun||1.||P.O. - a noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army|
master-at-arms - the senior petty officer; responsible for discipline aboard ship
enlisted officer, noncom, noncommissioned officer - a military officer appointed from enlisted personnel
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
p.o.N ABBR (Brit) =postal order → g.p., g/p
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005