1mar·a·thon 
/ˈmerəˌθɑ:n/ noun
plural mar·a·thons /ˈmerəˌθɑ:n/ noun [count] 1 : a running race that is about 26 miles (42 kilometers) long
▪ He ran (in) a marathon. 2 a : something (such as an event or activity) that lasts an extremely long time or that requires great effort
▪ We watched a marathon of our favorite movies. ▪ a movie marathon ▪ a shopping marathon
b : a contest in which people compete with each other to see who can do something for the longest amount of time
▪ a dance marathon
▪ He ran (in) a marathon.
▪ We watched a marathon of our favorite movies. ▪ a movie marathon ▪ a shopping marathon
b : a contest in which people compete with each other to see who can do something for the longest amount of time
▪ a dance marathon
