Nautical terms beginning with N Q and x

or more seriously...

Navigation
Nav lights
Nautical
Neap tides
Night passage
Noon sight
Notices to mariners
Norseman fitting
Navy
North
Nylon
Nimbostratus

Quarantine
Quayside
Quinquireme of Ninevah (2 in one there!)

A bit stuck on X... apart from Xray (as in inspection of keelbolts).
 
Nobby - Type of Manx sailing fishing boat.

Quant - Young flagpole used on the Norfolk Broads to propel engineless boats.

X-band - Radar.
 
X-Craft
Xebec
Q-Ship
Quadrant
Quadruple expansion engine
Quarantine
Quater
Quarter gallery
Quarter Bill
Quarter bolcks
Quarter deck
Quarter tonner
Quarter gunner
Quarter master
Quatuor maria
Quay
Quebec
Queen Annes free gift
Queen Elizebeth HMS
ditto RMS
Queen Mary
Quest Shackletons ship
Quiberon Bay
Quick flashing light
Quickwork
Quilting
Quintant
Quiros, Pedro
Quoin
Quota Act
Quoit
Quanting
 
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