I've always been told that Caroline means free woman since Carolus was a name given to a free man (with that meaning.) I know that the origin holds the meaning 'man' but since it's a feminized name I would still think that it could be considered to mean woman.
A meaning of Caroline is "a free woman", it also comes from Carl that means King.
― Anonymous User 7/19/2007
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Feminising a name does not change the meaning. It is still related to the word 'man' whether you want it to be or not. I believe the original meaning of Carl was more at 'free man' than 'man,' so I guess you can interpret it as meaning free with 'man' part being twisted into something like 'strong,' perhaps, but it still doesn't really mean woman.
― Anonymous User 4/9/2007
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Caroline is the feminine form of Charles. It is also from a German root meaning "strong, song, melody, and woman".