[ ahy-ern-sahyd ]
/ ˈaɪ ərnˌsaɪd /


a strong person with great power of endurance or resistance.
(initial capital letter) an epithet or nickname of Edmund II.
(initial capital letter) Usually Ironsides.
  1. (used with a singular verb) a nickname of Oliver Cromwell.
  2. the soldiers serving under Cromwell.
ironsides, (usually used with a singular verb)
  1. an ironclad.
  2. Eastern U.S. scup.

Origin of ironside

Middle English word dating back to 1250–1300; see origin at iron, side1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ironsides

British Dictionary definitions for ironsides (1 of 2)

/ (ˈaɪənˌsaɪdz) /


a person with great stamina or resistance
an ironclad ship
(often capital) (in the English Civil War)
  1. the cavalry regiment trained and commanded by Oliver Cromwell
  2. Cromwell's entire army

British Dictionary definitions for ironsides (2 of 2)

/ (ˈaɪənˌsaɪd) /


nickname of Edmund II of EnglandSee Edmund II
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