The extent to which socialism plays a part in modern New Zealand politics depends on which definitions of socialist are used, but few mainstream politicians would describe themselves using the word "socialist". The term "social-democrat" is more common, but the general "left-wing" or "centre-left" are used far more frequently. New Zealand has a complicated assortment of socialist causes and organisations. Some of these play a considerable role in public activism, such as the anti-war movement; other groups are strongly committed to socialist revolution.