Loss of equilibrium refers to the inability to maintain balance or stability, resulting in falls or stumbling. There are several synonyms for this condition, including dizziness, vertigo, imbalance, unsteadiness, disorientation, wooziness, lightheadedness, and instability. Dizziness and vertigo specifically describe a sensation of spinning or whirling, while imbalance and unsteadiness refer to the difficulty in maintaining one's center of gravity. Disorientation and wooziness describe a confused or disoriented state, and lightheadedness refers to a feeling of faintness or weakness. Instability denotes a lack of firmness or solidity and may refer to physical or emotional instability. These synonyms are useful in describing the various aspects of loss of equilibrium and can help in determining the cause and appropriate treatment.