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The number that shows that nature does like things in trios:

God is a Trinity—Father, Son, and Holy Spirit.
The underworld, the earth, and the heavens divide the world.
Length, width, and height define the natural world.
Solid, liquid, and gas make up the states of matter.
Three and one math facts about the number 3 are:
a) 3 = 1² + 1² + 1².
b) The smallest magic square is a 3 by 3 square—the sum is 15.
c) It is always possible to draw a circle through any 3 points not on a straight line.
d) Only 3 tessellations can tile a plane with regular polygons: equilateral triangles, squares, and hexagons.
via giphy
by MathPlus December 17, 2016
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2
The number between 2 and 4, and the enemy of Gabe Newell and Valve.
Gabe: Alright guys, we need a new Half-Life!
Some guy: HOW ABOUT HALF-LIFE 3?
Gabe: Half-Life what?
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3
The ultimate number, this number cannot be matched. It is the very workings of this universe, the foundation of life, the opening to eternal peace, joy and tranquility.
"What's your favourite number?"

"3"

"Good, you will succeed in life"
by Eaglebeaky June 08, 2014
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4
a number coming after 2, but not overshadowing it. Also a number coming directly before 4 but refussing ro be bullied or made feel less than by it. Strong number, yet emotionally sensative. In other words a number that knows its place.
"123456"
"most people have nothing in common with 3"
by Court_6X7_42 July 07, 2005
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5
The number that shalt be counted.
Example of 3.
SECOND BROTHER: And the Lord spake, saying, 'First shalt thou take out the Holy Pin. Then, shalt thou count to three. No more. No less. Three shalt be the number thou shalt count, and the number of the counting shall be three. Four shalt thou not count, nor either count thou two, excepting that thou then proceed to three. Five is right out. Once the number three, being the third number, be reached, then, lobbest thou thy Holy Hand Grenade of Antioch towards thy foe, who, being naughty in My sight, shall snuff it.'
MAYNARD: Amen.
KNIGHTS: Amen.
ARTHUR: Right! One! Two! Five!
GALAHAD: Three, sir!
ARTHUR: Three!

-Monty Python
by InjusticeForAll November 12, 2005
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6
A number added to the end of a username or gamertag, usually (if not always) by Japanese gamers (or non-Japanese Otaku) to represent the respectful honorific "-San" which sounds the same as the number three in Japanese.
Don't "-kun" me, bitch; I am Vezzy3.
by Vezzygirl July 20, 2015
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7
The ultimate number, this number cannot be matched. It is the very workings of this universe, the foundation of life, the opening to eternal peace, joy and tranquility.
"What's your favourite number?"

"3"

"Good, you will succeed in life"
by Eaglebeaky June 08, 2014
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