under sail

1.
Worldwidenauticalneutral
- Having the sails set and being propelled by the wind; underway under sail power rather than by engine.
- En route by sea with sails deployed, used to indicate that a vessel is sailing rather than anchored or berthed.
2.
Worldwidehistoricalliterary
- Pertaining to the era or mode of travel when ships were powered primarily by sail, often contrasted with steam or motor propulsion.
- Describing vessels or voyages characteristic of traditional sailing practice rather than modern powered navigation.

Examples: