Damocles Damocles /ˈdæməˌkliːz/

noun

1. The Greek courtier to Dionysius the Elder who (according to legend) was condemned to sit under a naked sword that was suspended by a hair in order to demonstrate to him that being a king was not the happy state Damocles had said it was (4th century BC)  ( Damocles )
   the Greek courtier to Dionysius the Elder who (according to legend) was condemned to sit under a naked sword that was suspended by a hair in order to demonstrate to him that being a king was not the happy state Damocles had said it was (4th century BC)
    The Sword of Damocles is a metaphor for imminent danger.
   The Sword of Damocles is a metaphor for imminent danger.
   
   

 monocycle monocycle /ˈmɒnəsaɪkl/

noun

1. A vehicle with a single wheel that is driven by pedals  ( monocycle , unicycle )
   a vehicle with a single wheel that is driven by pedals
   
   

 Harry Houdini Harry Houdini /ˈhæri hoʊˈduːni/

noun

1. United States magician (born in Hungary) famous for his ability to escape from chains, handcuffs, straitjackets or padlocked containers (1874-1926)  ( Erik Weisz , Harry Houdini , Houdini )
   United States magician (born in Hungary) famous for his ability to escape from chains, handcuffs, straitjackets or padlocked containers (1874-1926)
   
   

 Sarpedon Sarpedon /sɑrˈpiːdən/

noun

1. (Greek mythology) a son of Zeus who became king of Lycia; fought on behalf of the Trojans in the Trojan War and was killed by Patroclus  ( Sarpedon )
   (Greek mythology) a son of Zeus who became king of Lycia; fought on behalf of the Trojans in the Trojan War and was killed by Patroclus
    As an ally of the Trojans, Sarpedon faced the Greeks in fierce combat.
   As an ally of the Trojans, Sarpedon faced the Greeks in fierce combat.