Although specific meanings vary from country to country, I will attempt to produce an exhaustive list here.

1) A generic term for achieving an advantage in a sports game (verb, occasionally noun).
2) An amount due; a debt (noun).
3) A grievance that is harbored and requires satisfaction (noun).
4) A group of 20 items (noun).
4a) The amount of 20 pounds (noun)
5) The act of securing an advantage, especially a surprising or significant gain (noun).
6) The act or an instance of buying illicit drugs (noun-verb).
7) A successful robbery (noun).
8) A sexual conquest (noun-verb).
8a) Kissing someone, esp French kissing them (noun-verb, largely Irish-centric slang).
9) An exclamation of pleasure when learning of good news.
1) "I scored three goals against the High School the other day."
"He got a score in on that ponce of a keeper."

2) "I've been meaning to settle that score with you for that plastering job."

3) "Me and Jim have a score to settle about that dog I ran over, bloody thing jumped in the middle of the road."

4) "Fourscore and seven years ago..."

4a) "He owes me a score from when he went down the chip shop."

5) "We're really got a score over them on this real estate deal."

6) "I've got the shakes awful bad, we've got to score like right now."
"Here's a score, now give us a tenner."

7) "That bank job the other day was a right score."

8) "I scored her last night and all, and she were screaming her head off."
"She was an old score, never mind her."

8a) "Ah yeah I scored that bird over there in the blue dress!"

9) "Ma's getting pizza! Score!"
by Cacodyl February 11, 2008
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£20 worth of any given recreational drug, usually weed. An eighth of a ounce, or 3.5g
You picking up a score this Friday or just a tens?
by Aidan Brooks June 01, 2005
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The act of securing an advantage, especially for a surprising or significant gain.
Will your homegirl let me make the score for what's right, which is herself and her love?
by Mr. Terrence L. Trezvant January 22, 2005
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(n) or (v) a thrift store purchase of superlative value or rarity on the cheap
Those brand new boots were only $8? What a score!

I scored three George Jones LPs from the late-1960's today.
by mandingoe May 19, 2004
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The Irish term for "make out with." Used a lot by residents of Dublin, it means to kiss in a passionate manner.
by oxfordpictionary September 26, 2010
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