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The relationship between two words which have exactly the same keystroke series when texting while using a predictive text program.

They are distinctly different from words which interchange simply due to a typo and auto incorrect.
Girl in text: Good night! Love you!
Guy in text back: Hoof night! Knud you tom!
Girl in text: Oh T9onyms! Like a secret code! You're so funny!

Mom in text: When will you be good?
Son in text: What? ...Always?
Mom in text: Don't tall back! Bond gone nox!
Son in text: I think you are having a T9onym attack...
T9onym by KRA2008 June 23, 2011

Thonymar 

Thonymar is the best
Thonymar by Thonymar February 16, 2022

T9nonym(s) 

Two words having the same numerical code on a telephone dialing pad. Most commonly found in text messages while using T9.
The words "if" and "he" are T9nonym(s); as well as, "me" and "of".
T9nonym(s) by Dr. Sweet August 11, 2008

tonymaster21 

a very og username
hey tonymaster21, you are very og
tonymaster21 by tonymaster21 September 3, 2016

tonymartins 

An extremely handsome, caring guy. Amazing husband material, loving and sweet. "Tonymartins" have great listening skills, and will lay around with you for hours. Will write sweet notes, and never forget an anniversary or birthday. Capable of making even the worst days better, and cute enough to kiss, he is the best kind of guy.

As a friend, they are the most fun to be around. Can talk about anything with them for hours, and never get bored. Very loyal, and always willing to help out.

A Tony is a very independent, strong-willed guy with a good heart and a smile on his chiseled jawline. He's optimistic and cheerful, and has a beautiful smile.

Any girl would be LUCKY to get a Tonymartins.
He is so sweet like a tonymartins.
tonymartins by MartoniC February 5, 2020

Tonymartin427 

A small creator on tiktok that Is known for making meme videos on tiktok
"Hey look at this funny video tonymartin427 made"
Tonymartin427 by Tonymartin427 April 24, 2022
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026
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