A continent was a large landmass on a planet. Generally identified by convention rather than any strict criterion, the term normally referred to the few largest bodies of land in contrast to islands and other smaller bodies.
On the world of Safehold, only Haven (devided in East and West Haven), Chisholm and Howard were normally referred to as continents, while others, like Charis Island, actually qualified as small continents as well. (OAR)
- Detailed article about the continent concept on Wikipedia