Definitions of liberal on the Web:

broad: showing or characterized by broad-mindedness; "a broad political stance"; "generous and broad sympathies"; "a liberal newspaper"; "tolerant of his opponent's opinions"

having political or social views favoring reform and progress
tolerant of change; not bound by authoritarianism, orthodoxy, or tradition

a person who favors a political philosophy of progress and reform and the protection of civil liberties

big: given or giving freely; "was a big tipper"; "the bounteous goodness of God"; "bountiful compliments"; "a freehanded host"; "a handsome allowance"; "Saturday's child is loving and giving"; "a liberal backer of the arts"; "a munificent gift"; "her fond and openhanded grandfather"

a person who favors an economic theory of laissez-faire and self-regulating markets

(Just in case there is any confusion about what the word means. See also this thread on the origins of liberal thought.)

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