Telethon Definition
 tĕlə-thŏn 
  telethons
  
    noun
  
 A lengthy television program to raise funds for a charity.
 American Heritage 
A campaign, as on a lengthy telecast, seeking support for a cause, as by pledged donations made by telephone.
 Webster's New World 
An event that brings in people to donate money through the phone via the television (TV).
Wiktionary 
Other Word Forms of Telethon
Noun
Singular:
 telethonPlural:
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