'ren' used in million biggest domains list by Alexa.com:
renren.comreference.com
wordreference.com
extratorrent.com
gsmarena.com
cocoren.com
'ren' used in other domains:
differentshadesofink.comonlineparentinghelp.com
renzhao.com
longstreetrenovation.com
legislativestrengthening.com
rentowner.com
Statistical data
"ren" has the frequency of use of 0.0002% on city-data.com forum
"ren" has the frequency of use of 0.0003% on en.wikipedia.org.
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