Left and Right

Left and right describe positions or directions relative to a person, object, or chosen reference. When a person faces forward, the left side is one side of the body and the right side is the opposite side. The two terms can also indicate where something is located: a cup placed on the left side of a plate is to the left of it, while another cup on the opposite side is to its right.

Left and right are different from east and west, which are fixed geographic directions. They depend on the orientation of the person or reference being considered. If someone turns around, the person's left and right sides do not change, but objects that were previously on the person's left may now appear on the other side of the surrounding scene. Clear communication therefore often requires knowing whose point of view is being used.

These directions are useful for describing body parts, giving instructions, reading maps, and finding objects. The human brain learns to distinguish left from right through experience, movement, and visual information. A child can practise by identifying the left and right hands, feet, or sides of familiar objects.

When giving directions, it is important to use a clear reference: “turn left” means turn toward the person's left side, while “the book is on the right” requires knowing whose right is meant. Some maps use symbols or labels to establish a fixed orientation, often with north at the top, so left and right can then be interpreted from the map's viewpoint. Left and right are therefore relative directions, and their meaning depends on the reference and orientation being used.