An A.I construct in the Halo universe modeled after Dr. Hasley one of the main people involved in the SPARTAN project, Cortana is the most advenced A.I. in the entire Halo universe, she even hacks into UNSC(military) data if she has too. She is usually partnered up with Master Chief SPARTAN-117, she was stationed before that on a ship named the Pillar Of Autumn, where she was the ships navigator as most A.I constructs are, she is stored on The Chief in a special layer of his suit witch allows her to help his brain reflexes reach his limbs, making him faster than his normal enhanced speed, she is inserted through the helmet, but that is only where her holodisk stays, whle she spreads to every part of the chief's nueral interface, she even helps him with his radar.
"Chief, Chief can you hear me"
-Cortana
by Spikan January 26, 2006
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grandpa: Did you hear about Siri

Kid: Grandpa its motherfucking Cortana

Grandpa: Oh my bad
by SpiderBlaze21 December 08, 2017
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An Artificial Intellegence created for the Xbox game HALO. Can be inserted into helmets or projected in the form of a female humanoid. Very smart, changes colors as she thinks or feels. Resembles mystique from X-Men.
"Here Chief, Take Cortana and get off this ship." -Captain Keyes
by Michael Angelo June 23, 2004
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An A.I construct from the game Halo. She was desing for the Halycon Cruiser the PoA. But now (well aparently) she´s the Master Chief comrade. She´s very inteligent and maybe the best Human A.I construct.
"Convenant on the landing above us!!!"
-Cortana
by Estefano Palacios August 17, 2004
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If your name is Cortana the you are the most funniest person alive.You are also a dumbass bitch but that doesn’t mean I don’t still love you.All boys think you’re cute af with those eyes and smile of yours.
Boy1:Did you see Cortana

Boy2:My girlfriend?
Boy1:That’s your girlfriend!She is hot
Boy2:Yeah and she is mine
by wdwfan5850 November 27, 2019
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Cortana is literally the most funniest person alive...but she is an idiot to.She never stops talking but she has a great personality so that makes up for all the talking she does.If your name is Cortana you most likely have a crush on a boy name Justin.
Cortana is funny Dumbass bitch
by wdwfan5850 December 04, 2019
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