The term can be used even more generally. For example, someone who suffers from travel sickness may say that he or she is "not a good sailor".
In the minds of members of the Royal Navy, the term "sailor" refers to someone who is under sail and not on a vessel with motorised power of any kind.
Sailor were a British pop group of the 1970s. They were something of a novelty act, dressing in sailor gear and producing songs that went with the image. Their hits were:
Sailor was a major BBC television documentary series, first shown in the late 1970s, about life on board HMS Ark Royal, a British aircraft carrier. The theme tune was "Sailing" by Rod Stewart.