[ kos-terd, kaw-sterd ]
/ ˈkɒs tərd, ˈkɔ stərd /
a large English variety of apple.
Archaic. the head.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for costard
/ (ˈkʌstəd) /
an English variety of apple tree
the large ribbed apple of this tree
archaic, jocular a slang word for head
Word Origin for costard
C14: from Anglo-Norman, from Old French coste rib
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