Synonyms for Welfare (same or very similar meaning)
WordNet sense 1 (a contented state of being happy and healthy and prosperous):
upbeat, well-being, eudaemonia, eudaimonia, wellbeingWordNet sense 2 (something that aids or promotes well-being):
benefitWordNet sense 3 (governmental provision of economic assistance to persons in need):
social welfareFrom the ODE community, based on WordNetadd/edit