The social welfare system is in bad need of renovation.
There is an urgent need for social change.
a revolutionary doctrine that advocates destruction of the social system for its own sake
That social welfare system came into existence [being] last year.
a state of which the government provides adequately for the welfare of its citizens
the social agencies and their utilizers both objected to the budget cut
a social organization that does welfare work, called welfare office
The masses must be educated before society can progress.
The committee is discussing social welfare.
The dismissal of workers employed immediately after graduating from university is a serious social problem.