A government that undertakes responsibility for the welfare of its citizens through programs in public health and public housing and pensions and unemployment compensation etc. WordNet 3.0 & Open English WordNet

A welfare state is a form of government in which the state protects and promotes the economic and social well-being of its citizens, based upon the principles of equal opportunity, equitable distribution of wealth, and public responsibility for citizens unable to avail themselves of the minimal provisions for a good life. Wikipedia

The concept of government's playing a key role in individual economic and social well-being Wikipedia Disambiguation

Government promoting its people's welfare Wikidata

A social system in which the state takes overall responsibility for the welfare of its citizens, providing health care, education, unemployment compensation and social security. Wiktionary

Social system in which the state takes overall responsibility for the welfare of its citizens. Wiktionary (translation)