crown of thorns

definition: a mock crown made of thorn branches that Roman soldiers placed on Jesus before the Crucifixion
example:
speech part: noun
synonyms:
definition: somewhat climbing bushy spurge of Madagascar having long woody spiny stems with few leaves and flowers with scarlet bracts
example:
speech part: noun
synonyms:
definition: any affliction that causes great suffering
example:
speech part: noun
synonyms: cross

How crown of thorns is being used?