ICANN Acronyms and Terms
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country code top-level domain(ccTLD)
The class of top-level domains reserved for use by countries, territories, and geographical locations identified in the ISO 3166-1 Country Codes list.
ccTLDs can base their names on the two-letter country codes defined by the ISO 3166-1 standard (e.g., .jp for Japan, .fr for France, .ke for Kenya), or they can represent a country or territory name in a script other than US-ASCII characters.
Because ccTLDs are managed locally, the rules and policies for registering domain names vary across ccTLDs.