Also known as Latin epsilon, Latin letter open e
letter of the Latin alphabet
In the Vinony graph
Vinony's link graph records 451 inbound references to Ɛ, and connects out to Ê, acute accent and International Phonetic Alphabet.
It sits within the topics Latin-script letters, Phonetic transcription symbols and Vowel letters.
Vinony links it to 21 Wikipedia language editions.