bluejacket

noun

1. A seaman of a British warship

   “It never entered his mind that here was a matter which from its extreme questionableness, it was his duty as a loyal blue-jacket to report in the proper quarter.”

   “‘[…] I’m not sure’, she continued, ‘that I won’t throw myself overboard, for the mere pleasure of being rescued by a blue-jacket […]’”

   “The Navy and the Indian tribes up and down the Coast took part in the races, the Navy rowing their heavy ship's boats round from Esquimalt Harbour, manned by blue-jackets, while smart little pinnaces “pip-pipped” along commanded by young midshipmen.”

2. An enlisted man in the US Navy.

   “[…] drift like tear-starting smoke across these exciting pages written by a bluejacket of the U.S. Navy.”

3. A uniformed policeman.

   “He told me that Buster took her face 'bout right off. Said there's guts and hair everyplace. There's a platoon or so of Payton's bluejackets up there on the View now.”

4. An Ohio spiderwort (Tradescantia ohiensis).