Second (disambiguation)

Second may refer to:

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• 2 (number)
• Second, a unit of time
• Arcsecond, a unit of angle
• Second of right ascension, in astronomy
• Second (democracy), to support a proposal
• the agent of a challenger in a duel
• A British undergraduate degree classification
• Rock climbing, the climber who follows the lead climber
• Seconds (film) starring Rock Hudson

Music:

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• Major second
• Neutral second
• Minor second