High cholesterol levels are a serious health concern that can lead to a range of health problems. There are a number of different synonyms for the term "high cholesterol" that are used to describe the same condition. Some common synonyms include "hyperlipidemia", "hypercholesterolemia", and "dyslipidemia". These terms all refer to an abnormal elevation of lipids in the blood, particularly of LDL cholesterol or "bad" cholesterol. High cholesterol can increase the risk of heart disease, stroke, and other health problems, so it is important to work with a healthcare professional to manage cholesterol levels through lifestyle changes and, if necessary, medication.