obelisk
noun /ˈɒbəlɪsk/
/ˈɑːbəlɪsk/, /ˈəʊbəlɪsk/
- enlarge imagea tall pointed stone column with four sides, put up in memory of a person or an eventTopics Buildingsc2Word Originmid 16th cent.: via Latin from Greek obeliskos, diminutive of obelos ‘pointed pillar’.