Yes, a broadsword can be used with one hand, although it is primarily designed for two-handed use. The term "broad" in broadsword refers to the width of the blade, while the term "hand-and-a-half" or "bastard" sword signifies that it can be wielded with either one hand or two hands.

When using a broadsword with one hand, the grip is typically adjusted closer to the pommel, allowing for better control and maneuverability. This one-handed grip provides the wielder with the ability to execute faster strikes, quicker changes in direction, and better coordination with a shield or another weapon.

Using a broadsword with one hand allows for greater versatility in combat situations. It enables the wielder to engage in close-quarters fighting, make quick defensive moves, or switch between offense and defense swiftly. However, it is important to note that the broader blade and overall weight of the broadsword may require more strength and skill to wield effectively with one hand compared to lighter one-handed swords.

Ultimately, whether using a broadsword with one hand or two hands, it is crucial to receive proper training and practice to develop the necessary technique, control, and familiarity with the weapon.