Algebrailien 

A mix between the word algebra and alien, also being spelt with an a instead of an e. usually used to refer to the numerals in object shows. They are commonly shaped like a number, letter, or just a symbol in general. They possess 4 fingered hands and are mostly solidly colored aside from their eyes, mouth, and legs and arms that are usually a lighter shade of that color. Sometimes their squishy and are made out of different materials. Algebrailians first appeared in the series Battle For Dream Island, which you can watch on YouTube.

**Algebrailien** ;

Person A: "What is Four from BFDI?"

Person B: "Four from BFDI Is an ALGEBRAILEN."

Algebrailien by MALya4EVER August 15, 2024

algebralien 

An alien that’s an algebraic symbol such as four, x, and 2 the most popular of their species, the algebraliens usually are found in the number playground and which is where they were first introduced specifically four and x they were finding out the value of x and spoiler alert…. He equaled to 7! The algebraliens don’t have genders but people presume four, x, and 2 being male and fun fact all of the algebraliens have all their limbs except one. How weird is that?

Person 1: hey who’s your guy’s favorite algebralien?

Person 2: Personally I like nine since he’s cool

Person 3: well I like x because he’s adorable

Person 1: I honestly like 7 although he’s the most hated I think he’s just super underrated

algebralien by Algebraleins July 10, 2022

Algebralian

A fan-made term used to describe numeric characters from the long-running YouTube show, Battle For Dream Island, or BFDI, originating from an educational video titled X Finds Out His Value. It is used most commonly to describe original characters of the species, but is also referred to the canon characters, X, Four, and Two. The term currently has never been accepted as canon into the show, but the official Twitter account, Jacknjellify, had used the term when describing artwork.

Four is a funky little Algebralian.

Algebralian by blorgblorg May 7, 2020

Algebraille 

What blind people study in their algebra classes.

The blind teenager did his algebra assignments in braille, algebraille.

Algebraille by TheVeryBestThatNoOneEverWas October 8, 2011

Algebralien 

A portmanteau of the word Algebra and Alien.

You find these in the equation playground, XFOHV, BFDI, TPOT and so on. These refer to the sentient numbers and variables such as Two and Four being the most widely known

'Who's your favourite algebralien?'
'I prefer Seven over Five.'

Algebralien by termina11yCapricious July 26, 2025

Algebralian

Algebralien, just spelled differently.

Which.. Isn't a problem, by the way.

'Is it algebralian or algebralien?'

Algebralian by termina11yCapricious July 27, 2025

Algebrailiot

Someone who is a fan of the "Algebrailien" characters from Battle for Dream Island

Person 1: OMG! Did you see Tpot 20?? I love the Algebrailiens
Person 2: Sybau you fucking algebrailiot

Algebrailiot by Maxgamer345 October 25, 2025