1. an area of territory owned or controlled by a ruler or government
2. a field of activity or knowledge
3. a set of websites on the internet that end with the same group of letters
Usage: computing

Examples

• The king ruled over a vast domain that stretched across three countries.
• Computer science is her domain of expertise.
• The company registered several domain names for their new website.
• In mathematics, the domain of the function includes all positive numbers.
• This issue falls outside my domain of responsibility.
• The .com domain is one of the most popular on the internet.
• Wildlife conservation is primarily the domain of environmental scientists.