SIA

Singapore International Airlines.
The premium airline in Asia.

http://en.wikipedia.org/wiki/Singapore_Airlines

Hey! Im flying to Canada on SIA!

by melvinlow November 03, 2008

SIA

Swaggerific Intense Athlete; an intense athlete such as a runner or a gymnast who also has some serious swag.

"dayummm she a serious SIA. I can tell by that body"

by SIA1 August 28, 2011

SIA

Sorry in advance

I'll be off hiking this weekend, while you're tethered to your computer for work. SIA if I can't respond to your emails quick enough.

by rich New Yorkers January 25, 2017

SIA

'Smile in appreciation', as a logical replacement for LOL, when one is not actually laughing.

'Why did the acrobat reader document get arrested?"
'Why?
' Because it was a PDF File'
'SIA'

by sitcheh March 17, 2009

SIA

1.

SIA is basically a Gaming term in computer world, refering to real life term - KIA.

It's very alike with word skillad, meaning Skilled In Action. It's Killing with Skill = S-killing.

Being SIA in first person shooters has a meaning of being shot in a very unorthodox, very thought through and amazing way.
SIA can be anything including Headshots, Clutches, ACEs, and other amazing stuff that can be done using skill.

2.

SIA'd also may have a meaning of " Served in action " linking to " you got served " .

Gamer chit-chat:

(two guys watching their teammate frag):

- Woah, look at that HS !
- Ahahaha, another one !
- Holly shit, those guys got SIA'd :DD
...

by dvour March 02, 2008

SIA

Sluts in action

Guy 1: I had sex with ____
Guy 2: I did too... thats awk.
Guy 1: Shes a SIA!

by Britney Canner December 03, 2010

Sia

Sia means "Helper" in Hebrew, and it's an uncommon name. If you have a friend named Sia, chances are she's a sweet, eccentric girl who loves to help others, even if it hurts herself. She's creative and funny. Take this friend, and don't ever let her escape. She's a rare one who will stick with you for life.

Without Sia, I don't know where I'd be. She's such a sweet friend.

by LeBunnyBlanc November 11, 2019