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British Dictionary definitions for round down

round down

verb
  1. (tr, adverb) to lower (a number) to the nearest whole number or ten, hundred, or thousand below itCompare round up (def. 2)
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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