Miriam-Webster:
Definition of conservatism
1
capitalized
a
: the principles and policies of a
Conservative party
b
: the Conservative party
2 a
: disposition in politics to preserve what is established
b : a political philosophy based on tradition and social stability, stressing established institutions, and preferring gradual development to abrupt change; specifically : such a philosophy calling for lower taxes, limited government regulation of business and investing, a strong national defense, and individual financial responsibility for personal needs (such as retirement income or health-care coverage)
3
: the tendency to prefer an existing or traditional situation to change
religious conservatism cultural conservatism
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Definition of liberalism
1
: the quality or state of being
liberal
2
a
often capitalized : a movement in modern Protestantism emphasizing intellectual liberty and the spiritual and ethical content of Christianity
b
: a theory in economics emphasizing individual freedom from restraint and usually based on free competition, the self-regulating market, and the gold standard (see
gold standard 1)
c
: a political philosophy based on belief in progress, the essential goodness of the human race, and the autonomy (see
autonomy 2) of the individual and standing for the protection of political and civil liberties; specifically
: such a philosophy that considers government as a crucial instrument for amelioration of social inequities (such as those involving race, gender, or class)
d
capitalized : the principles and policies of a Liberal (see
1liberal 6b) party