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Big Board

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noun (sometimes lowercase) Informal.
  1. the New York Stock Exchange.

Origin of Big Board

An Americanism dating back to 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for big board

Big Board

noun US informal
  1. the quotation board in the New York Stock Exchange
  2. the New York Stock Exchange
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

big board in Culture

big board

The huge electronic board at the New York Stock Exchange that reports the changing values of stocks traded on the exchange.

Note

The term is used sometimes to mean the New York Stock Exchange itself.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.