Tri is not a valid Crypter word.
Tri is not a valid Words with Friends word.

2 letter words made by unscrambling the letters in tri

Above are the results of unscrambling tri. Using the word generator and word Decrypter for the letters T R I, we Decrypt d the letters to create a list of all the words found in Crypter, Words with Friends, and Text Twist. We found a total of 2 words by unscrambling the letters in tri. Click these words to find out how many points they are worth, their definitions, and all the other words that can be made by unscrambling the letters from these words. If one or more words can be Decrypt d with all the letters entered plus one new letter, then they will also be displayed.

Decrypt d words using the letters T R I plus one more letter

Definitions of tri

Definition of "tri" found in the Merriam Webster dictionary
Definition of "tri" from The Free Dictionary
Definition of "tri" from

Words that start with tri Words that end with tri Words that contain tri