noun
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the state or quality of being hard (as a metal).
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the quality of being easily broken, apt to break; fragility.
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the quality of being difficult to deal with or being unfeeling, lacking pity, etc.
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the condition or fact of being difficult.
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vanity; vainglory.
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the state or quality of being viscous; viscosity.
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little scales or flakes of dead skin formed on the scalp; dandruff.