The standard definition:
a. Not limited to or by established, traditional, orthodox, or authoritarian attitudes, views, or dogmas; free from bigotry.
b. Favoring proposals for reform, open to new ideas for progress, and tolerant of the ideas and behavior of others; broad-minded.
c. Of, relating to, or characteristic of liberalism.
d. Liberal Of, designating, or characteristic of a political party founded on or associated with principles of social and political liberalism, especially in Great Britain, Canada, and the United States.
The Fox News definition:
a. all those fags you see in pink leather tutus parading down the street in San Francisco
b. all those anti-God atheists you see trying to take God out of Christmas.
c. those responsible for 9/11, the price of gas, teenage pregnancy, abortion, Nambla, insecure borders, Terry Shiavo, Michael Jackson, Ludacris, the Tsunami, Spongebob Squarepants, and reality television.