Listing in sailing refers to a vessel leaning or tilting permanently to one side (port or starboard). It is usually caused by imbalanced weight distribution, flooding, or shifting cargo, rather than the temporary rocking motion of waves, known as rolling. Excessive listing can lead to capsizing.

Key Aspects of Listing:
Cause: Often due to off-centerline weight, damaged hull, or water taking on.

Difference from Heeling: While listing is often unintended or dangerous (due to imbalance), heeling is a intentional, temporary leaning of a sailboat caused by wind while sailing.

Angle of List: This term describes the degree to which a boat leans at equilibrium.

"On Her Beam Ends": A phrase for when a vessel is listing 45 degrees or more, putting it in danger of capsizing.