English

Definition of decathlon noun from the Oxford Advanced Learner's Dictionary

 

decathlon

 noun
noun
BrE BrE//dɪˈkæθlən//
 
; NAmE NAmE//dɪˈkæθlən//
 
 
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a sporting event in which people compete in ten different sports compare biathlon, heptathlon, pentathlon, tetrathlon, triathlon Word Origin early 20th cent.: from deca- ‘ten’ + Greek athlon ‘contest’.
See the Oxford Advanced American Dictionary entry: decathlon