From Longman Dictionary of Contemporary Englishseafarersea‧far‧er /ˈsiːˌfeərə $ -ˌferər/ noun [countable] old-fashioned or formal a sailor or someone who travels regularly by ship
Examples from the Corpus
seafarer• These picturesque craft are manoeuvred through London's crowded waterways by traditional Cockney seafarers in their striped sweaters and ribboned boaters.• In the parable of Jonah, the prophet's disobedience stirs up the deep to endanger the lives of his fellow seafarers.• Some of these arrived accidentally, but many were released deliberately for the benefit of seafarers and settlers.• A further hazard with which seafarers had to contend was mines. 