9-11 as NOUN

1. Meaning
   • the day in 2001 when Arab suicide bombers hijacked United States airliners and used them as bombs
   
   Synonym(s)
   • 9/11 (what does 9/11 mean?)
   • Sept. 11 (what does Sept. 11 mean?)
   • September 11 (what does September 11 mean?)
   • Sep 11 (what does Sep 11 mean?)
   
   Hypernyms(s) 9-11 is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • terrorist attack (what does terrorist attack mean?)