Epsilon

usgb/ˈepsɪlɑːn/
noun

The fifth letter of the Greek alphabet.

Epsilon is used to denote the fifth item in a sequence or list.
Visual representation of "epsilon" - The fifth letter of the Greek alphabet.

Often appears as...

  • epsilon letter
  • epsilon symbol
Definition 1 of 4
Visual representation of "epsilon"
LampPro Tip 1/2

Greek Origin

Remember, 'epsilon' is from the Greek alphabet, so it's not used in regular English spelling.

Illustration for Greek Origin
The Greek word for 'epic' starts with an epsilon.
LampPro Tip 2/2

Not a Number

Don't confuse 'epsilon' with the term 'e', which refers to a mathematical constant.

Illustration for Not a Number
Unlike 'e', epsilon simply represents the letter 'E' in Greek.
Visual representation of the word "Epsilon"

Never forget "Epsilon"

Humans forget easily. That's why you should download WordUp: Smart reminders, word games, AI practice, and much more!

Download on the App StoreGet it on Google PlayGet it from MicrosoftGet it on AppGallery
Chrome

WordUp Chrome Extension

As you browse the web instantly look up words you don’t know.

Get Chrome Extension