consistency
US /kənˈsɪs.tən.si/
UK /kənˈsɪs.tən.si/

1.
the quality of achieving a level of performance which does not vary greatly in quality over time
:
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The team needs to show more consistency in their performance.
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Her consistency in practice led to her success in the competition.
2.
the state or fact of being in agreement or compatible with something else
:
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There is a lack of consistency between his words and actions.
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The new policy ensures consistency across all departments.