What is backwards e?

In linguistics, the backwards "e" symbol, or Ǝ, is known as a turned epsilon. It is used to represent an open-mid front unrounded vowel sound in the International Phonetic Alphabet (IPA). This sound is heard in various languages such as English, French, and German, where it is often spelled with the letter "e" or "eh". The backwards "e" symbol is also used in the transcription of other vowel sounds that do not have a specific symbol in the IPA. It is important to note that the turned epsilon symbol should not be confused with the regular epsilon symbol (ɛ), which represents a different vowel sound.