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To be sound: Irish slang. To be sound is a state of existence. It usually refers to someone who willingly does a favour, asked or not, although usually unexpected - Like when you ask for one rollie and your given two, or the bouncer to an over 21s let's you in when your 20.

Alternatively, "sound" can be used as an adjective to describe a genuine, nice person.
-Man, can I have two of those Rowntrees?

-Here, you can have the rest of the packet

- AW, sound!
by Deppstache June 03, 2015
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Aug 7 Word of the Day
A person or people that purposefully causes chaos or mischief within a group for the sake of entertainment.
Yo! She just outed Brian and left. She's such a fucking chaos agent.
by Starquti September 05, 2020
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2
i) An individual who might be considered "cool", or generally very likeable.

ii) As to say, "All is well"; "Very good" etc
i) "How ye' doin'?"
"Sound man, sound"

"You see big Davie? He's sound."
by grump February 05, 2004
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3
Irish slang for 'deadly' or 'cool'
who's that?
oh thats aoife she real sound.
by Caraaaaaa October 16, 2011
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4
1. A noise.
2. A synonym for "cool," "awesome," originating in Liverpool, if I recall correctly. Either way, it's mostly used by Scousers.

Note: Please stop complaining about how we're getting the definition wrong, you yanks. Try looking it up on Wikipedia or on Google, you blithering twats.
- "Did you hear that sound, dear?"
- "The footy was well sound, weren't it, our Baz?"
- "You self proclaimed 'grammatically correct' yanks are not sound."
by LameyT August 13, 2006
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6
Often used by Scottish Glasgow Neds, usually followed by "mate" to let you know that something is ok
Ned: "Got a fag mate?"
Passer-by: "Nah, sorry im all out"
Ned: "Sound mate"
by sanJ Street July 12, 2004
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