old boy

[ ohld -boi for 1, 2; ohld -boi for 3; ohld -boi for 4 ]
/ ˈoʊld ˈbɔɪ for 1, 2; ˈoʊld ˌbɔɪ for 3; ˌoʊld ˈbɔɪ for 4 /

noun

Informal. an adult male, especially a Southerner.Compare good old boy.
a lively elderly man.
Chiefly British. an alumnus, especially of a boys' preparatory or public school.
Chiefly British. old chap.

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Origin of old boy

First recorded in 1595–1605
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for old boy

  • To what precise causes the rapid advance of old-boy population is to be traced, we are unable to determine.

    Sketches by Boz|Charles Dickens

British Dictionary definitions for old boy

old boy

noun

(sometimes capitals) British a male ex-pupil of a school
informal, mainly British
  1. a familiar name used to refer to a man
  2. an old man
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