Hi,
.com, .org, .net, .edu, .gov, .int, .biz, .info, .name, .pro
all these are top level domain.
Its TLD - Top Level Domain.
The two-digit abbreviation is AQ The three-digit abbreviation is ATA The Internet Domain extension is .aq
Top Level Domain in Internet domain naming conventions/protocol.
The abbreviation at the end of Irish domain names is ie. Anyone applying for an ie domain name who does not reside in the 32 counties of Ireland must prove a Real and Substantive Connection with Ireland.
Suriname's abbreviation is SR. This abbreviation is used in Suriname's world airport code. It also is the Internet country-code top-level domain [ccTLD].
I've seen it abbreviated as CN (though that is the internet domain for China)
The abbreviation of the protein domain 'SET' stems from three proteins containing the domain: Su(var), Enhancer of zest, and Trithorax.
GOVernment, its a government domain for government sites like nasa.gov
DNS stands for Domain Name System.
The Domain Name System or DNS for abbreviation.
.EDU is an abbreviation for "education." It's a generic top-level domain (gTLD) of the internet Domain Name System (DNS). To register a .EDU domain name, the registrant must be a U.S.-affiliated institution of higher education.
It's HN. The Internet TLD (Top Level Domain) is .hn