Roam
The fifth position: no farm lane, instead providing map-wide vision and engage.
Roam is the lane role — distinct from the roamer hero playing it — defined by not having a dedicated farm lane. Instead the roam position moves between lanes and jungle providing vision, ganks, peel, and objective setup, usually as a tank or support. Because roam doesn't need consistent farm, it's the position most often given a CC-heavy or utility-heavy hero regardless of raw damage output.
Related terms
RoamerThe tank or support who has no farm lane and instead roams the map.TankHigh-HP frontline hero built to absorb damage and disrupt fights with CC.SupportUtility class focused on healing, shielding, buffing, and CC for the team.VisionMap awareness from wards, scout skills, and camera items used to track enemies.