Do you know the meaning of -o-?
A linking vowel inserted interconsonantally between two morphemes, to ease pronunciation, without contributing to the meaning. It frequently joins words of Ancient Greek or Latin origin but can also be used between modern terms and even abbreviations.
Word in 3 letters.
This definition of the word -o- is from the Wiktionary, where you can also find the etimology, other senses, synonyms, antonyms and examples.
The word -o- has 7 anagrams.
The word -o- is a palindrome: it can be read backwards.
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Please note: the Wiktionary contains many more words - in particular proper nouns and inflected forms: plurals of nouns and past tense of verbs - than other English language dictionaries such as the Official Scrabble Players Dictionary (OSPD) from Merriam-Webster, the Official Tournament and Club Word List (OTCWL / OWL / TWL) from the National Scrabble Association, and the Collins Scrabble Words used in the UK (about 180,000 words each). LotsOfWords knows 480,000 words.