Other. It never meant anything. For instance, so-called Classical Liberals held a huge range of incompatible beliefs:
  • JS Mill wanted the State to "liberate" individuals from the "restrictions" of society/religion/etc
  • Garibaldi was a veritable authoritarian
  • Hayek was a democratic socialist who favored the social/welfare programs we have in every nation-state today
  • John Locke formalized social contract theory, which helped to expand the power of the State to new levels
  • Mises and Bastiat were both minarchists
Just like Classical Liberalism, modern Liberalism means nothing, because it is applied to people with radically different beliefs.