Definition of REN in English:

REN

Syllabification: REN

abbreviation

Ringer equivalent number, a measure of the load a device will place on a telephone line. The maximum REN allowed on a single line is usually limited by telephone companies.

Definition of REN in:

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Word of the day neoteny
Pronunciation: niːˈɒt(ə)ni
noun
retention of juvenile features in the adult animal