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<link:definition>1997502 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Short-Term Inflation-Protected Securities Index Fund Institutional)</link:definition>
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<link:definition>1997504 - Schedule - Shareholder Fees (Vanguard Short-Term Inflation-Protected Securities Index Fund Institutional)</link:definition>
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<link:definition>1997508 - Schedule - Annual Fund Operating Expenses  (Vanguard Short-Term Inflation-Protected Securities Index Fund Participant:)</link:definition>
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<link:definition>1997509 - Schedule - Shareholder Fees (Vanguard Short-Term Inflation-Protected Securities Index Fund Participant:)</link:definition>
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<link:definition>1997527 - Schedule - Expense Example, No Redemption {Transposed} (Vanguard Short-Term Inflation-Protected Securities Index Fund Participant:)</link:definition>
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<link:definition>1997541 - Schedule - Annual Fund Operating Expenses  (Vanguard Short-Term Inflation-Protected Securities Index Fund Institutional)</link:definition>
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<link:definition>1997557 - Schedule - Shareholder Fees (Vanguard Short-Term Inflation-Protected Securities Index Fund Participant)</link:definition>
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<link:definition>1997579 - Schedule - Shareholder Fees (Vanguard Short-Term Inflation-Protected Securities Index Fund Retail)</link:definition>
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<link:definition>1997590 - Schedule - Annual Fund Operating Expenses  (Vanguard Short-Term Inflation-Protected Securities Index Fund ETF)</link:definition>
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