EONS Scrabble 4 Words With Friends 5 Definition EONS is the plural of EON. noun EON: the longest division of geological time. Examples “It's been eons since we last saw each other.” Anagrams of EONS noesnoseonessone See all 22 words you can make from EONS → 4-letter words Words starting with E Words ending with S ← Unscramble different letters