noun
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a series of paper sizes approved by the International Standards Organization, running from 2AO to A7, each size (defined in mm) being half as large as the one preceding it, as follows: 2AO ,1189 × 1682; AO , 841 × 1189; A1 , 594 × 841; A2 , 420 × 594; A3 , 297 × 420; A4 , 210 × 297; A5 , 148 × 210; A6 , 105 × 148; A7 , 74 × 105
"Collins English Dictionary — Complete & Unabridged"
2012 Digital Edition
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
