"Con" at the end of name

[Ntmt]

Hi,
Can someone explain what does "con" mean at the end of domain name (like in realestatecon.com for example)?
I see it is widely used:
https://namebio.com/?s==gzN0kTNxcTM

 

[karmaco]

Conference

 

[Dan Beck]

Or convention.

 

[karmaco]

Or convention.

Yes meant to say or

 

[deez007]

Could also mean: Consulting / Consultant / Connection / Consolidated

 

[Ntmt]

Thanks you all for explanation!
Next question: is there some place where such abbreviations are collected together?