a single person or thing, viewed as taking the place of a group.

(One never knows, does one?)
You and they are also used in a similar way. However, one and you include the speaker in the generalisation One’s is a possessive determiner:
One’s health is much more important than having lots of money.

being or amounting to a single unit or individual or entire thing, item, or object rather than two or more; a single:one woman; one nation; one piece of cake.

being a person, thing, or individual instance or member of a number, kind, group, or category indicated:one member of the party.

existing, acting, or considered as a single unit, entity, or individual.

of the same or having a single kind, nature, or condition:We belong to one team; We are of one resolve.

noting some indefinite day or time in the future:You will see him one day.

a certain (often used in naming a person otherwise unknown or undescribed):
1. You could see which restaurants were rated the highest on Yelp, which ones certain reviewers liked, and so on.

I can't really blame the (ones) that step over the line once in a while.

You know, the ones out there.
by WuttsIt2U? October 12, 2017
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To close out a meeting, dialogue or some instance of communication with another/others by equating this term with "take care."
"Ayight man, I'm bout to bounce, I'll holla at you later. One."
by Aaron August 05, 2003
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A unit of sex, although with no concrete definition. This can be given or slipped.
"Have you seen that Kate Moss. She's got tits like fried eggs but I'd certainly slip her one."

Mario: "How many marks would you give Princess Peach, out of two?"

Luigi: "Hmm. I'd give her one."

by HMB July 12, 2003
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A great answer to give in math class when a teacher asks you a question to make sure you are paying attention, and you don't know it because you really weren't paying attention.

Great because it is more likely to be the right answer than any other number. Also, even if you're wrong, everybody will think it was just a joke and you will come out on top.

Do not try in other classes or you will look like a dumbass.
Me: zzz... "snore"

Mr. Lashower: Erick, would you please tell me what anything to the power of zero is?

Me: "wakes" Uhhhh.... one?????

Mr. Lashower: Yes, that's the correct answer.

Me: Bitchin'. This shit works.


Me: zzz...

Mr. Goldfischer: Erick who won the Battle of Stalingrad?

Me: One?

Classmates: WTF ?!?!
by Erick A. C May 24, 2009
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1) When a vehicle is nearly out of gasoline, dictated by the gas meter pointing in the general direction of the "E"

Often used as an excuse to not drive somewhere, much more prevalent since gas prices have become greater than $2/gal.
James: Come get me at the library I got that dro.
Anthony: I don't think I can, dude. I'm broke and on E.
by XdElIrIuM April 27, 2006
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