half-crown in English dictionary half-crown Meanings and definitions of "half-crown" A pre-decimal coin used in Britain and Ireland, now obsolete, equivalent to two shillings and six pence noun (historical) A pre-decimal coin used in Britain and Ireland, equivalent to 30 pence or two shillings and six pence more Grammar and declension of half-crown half-crown ( plural half-crowns) half-crown (plural half-crowns) more Sample sentences with "half-crown" Declension Stem Try again Available translations Bulgarian Burmese Czech Esan French German Hindi Irish Italian Jèrriais Kurdish Kurmanji Polari Polish Scottish Gaelic Spanish Vietnamese Authors