tel·e·thon 
(tĕlə-thŏn′)
(tĕlə-thŏn′)n.
A lengthy television program to raise funds for a charity.
[TELE- + (MARA)THON.]
- repellently
- repeller
- repent
- repent
- repentance
- repentant
- repentantly
- repenter
- repercussion
- repercussive
- reperfusion
- repertoire
- repertorial
- repertory
- repertory company
- repetend
- repetition
- repetitional
- repetitious
- repetitiously
- repetitiousness
- repetitive
- repetitively
- repetitiveness
- repetitive strain injury