Liberalism (Encyclopaedia Britannica)

Again, in case we've forgotten what the word means.

Liberalism, political doctrine that takes protecting and enhancing the freedom of the individual to be the central problem of politics. Liberals typically believe that government is necessary to protect individuals from being harmed by others; but they also recognize that government itself can pose a threat to liberty.

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The problem is compounded when one asks whether this is all that government can or should do on behalf of individual freedom. Some liberals—the so-called neoclassical liberals, or libertarians—answer that it is. Since the late 19th century, however, most liberals have insisted that the powers of government can promote as well as protect the freedom of the individual. According to modern liberalism, the chief task of government is to remove obstacles that prevent individuals from living freely or from fully realizing their potential. Such obstacles include poverty, disease, discrimination, and ignorance. 

See Liberalism (Encyclopaedia Britannica)