What does candor mean?

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From our dictionary:

can•dor

Pronunciation: (kan'dur), [key]
n.
1. the state or quality of being frank, open, and sincere in speech or expression; candidness: The candor of the speech impressed the audience.
2. freedom from bias; fairness; impartiality: to consider an issue with candor.
3. Obs.kindliness.
4. Obs.purity. Also, esp. Brit.,can'dour.