AI

1. Abbreviation of Artificial Intelligence, basically when computers become smart(er than humans).
2. A feminine Chinese and Japanese given name, generally meaning love or affection.
3. The sound a person makes when stepping on a Lego brick, can be replaced with other words such as "shit", "fuck", and sometimes a nonsensical scream.
4. An alternative spelling of "aye", a synonym for "yes" which is not really used anymore- the only time one hears it is in a pirate movie.
5. Lastly, AI could mean Artificial Insemination which is the process of making a woman or female animal pregnant by an artificial method of putting male sperm inside her, and not by sexual activity.

1. "Wow, Joe, AI is really getting out of hand these days, look at this Disney poster about racism someone made using AI!"
2. "Yesterday I met a Japanese woman named Ai. She looked like that girl from the Anime I watched."
3. "Ai! Joe, did you leave this Lego brick here on the floor?!"
4. "Aye aye, Captain, I will jump off the roof as you command!"
5. "I wanted to remain a virgin, so instead of doing it myself, I let doctors impregnate my wife."

Sigma

1. The 20th Old/Ancient Greek letter or the 18th Modern/Classical Greek letter.
2. In mathematics used to indicate the summation of a set or series.
3. In statistics used to indicate something complicated not able to be understood by Urban Dictionary readers.
4. The best meaning: a sigma male. Similar to an alpha male but better. A lone wolf - a self-reliant and assertive male.

1. Yesterday I read a book in Greek and I saw the letter Sigma.
2. Blah blah blah sigma blah blah series blah blah- hey, you, why aren't you listening in class!
3. Mommy, what does sigma in statistics mean?
4. Man, look at this guy, he's such a sigma!