Angioedema is a medical condition characterized by swelling of the skin, mucous membranes, and subcutaneous tissues. Synonyms for this condition include Quincke edema, angioneurotic edema, and giant hives. These terms are often used interchangeably with angioedema and refer to the same clinical picture. Quincke edema pertains to rapid onset and progression of the swelling, angioneurotic edema highlights the role of nerve impulses in triggering the condition, while giant hives emphasize the magnitude of the swelling. Other synonyms for angioedema are allergic edema, non-allergic angioedema, and hereditary angioedema. These synonyms reflect the differences in the underlying causes of the condition.