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tpi

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  1. teeth per inch.
  2. turns per inch.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for tpi

TPI

abbreviation for
  1. tax and price index: a measure of the increase in taxable income needed to compensate for an increase in retail prices
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012