Definition of obelisk

What does the word obelisk mean?

• part of speech: noun

  Tapering usu. monolithic shaft of stone square or rectangular in section with pyramidal apex; o.-shaped mountain, tree, &c.; (also obelus) mark used in ancient MSS. to indicate that word or passage is spurious &c. (-,÷); (also obelus) mark of reference to note in margin &c. (+; double o., +). [Latin]