noun Chiefly British.
a male boarding-school student who lives at home.
Origin of day boy
First recorded in 1840–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for dayboy
/ (ˈdeɪˌbɔɪ) /
British a boy who attends a boarding school daily, but returns home each evening
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