Open English Wordnet
Nouns
(n)cross, crown of thornsany affliction that causes great suffering“that is his cross to bear”, “he bears his afflictions like a crown of thorns”
(n)crown of thorns, Christ thorn, Christ plant, Euphorbia miliisomewhat climbing bushy spurge of Madagascar having long woody spiny stems with few leaves and flowers with scarlet bracts
(n)crown of thornsa mock crown made of thorn branches that Roman soldiers placed on Jesus before the Crucifixion