A new domain name extension that rose to popularity in mid 2010 due to an overwhelming majority of youth (mostly American) who couldn't be f*cked typing the letter 'm' for the previously popular extension '.com'
dotco (.co)
i want to visit the apple website...
www.apple.com WRONG
apple.com WRONG
apple.co WIN
Internet contraction of the English "because", often used in chat rooms or IM sessions in order maximize wordkeystroke conservation/word.
"I liek teh int4rnet cos it's kewl n shiz."
It’s means you or a short for the word cool
Harry:Your ugly
You:I’m mad at co
Harry:Why are you mad at me
Litterally, ‘ and company’. A lot of times used after the main character of a video-game to denote his\her sidekicks.
Can’t wait to see Sora&co. in *Kingdom Hearts II*!!
Expression of 'cosine' in an actual math problem.
'Cos' is prounounced 'cosine'.