obelisk /ˈɒbɪlɪsk 
, ˈəʊbɪlɪsk / ▸ noun 1 a tapering stone pillar, typically having a square or rectangular cross section, set up as a monument or landmark. ▪ a mountain, tree, or other natural object resembling an obelisk in shape.
– ORIGIN mid 16th century: via Latin from Greek obeliskos, diminutive of obelos ‘pointed pillar’.
EnglishOxford Dictionary of English
