1. (

• kingdom ,
• land ,
• realm ,

) a domain in which something is dominant; "the untroubled kingdom of reason"; "a land of make-believe"; "the rise of the realm of cotton in the south" ;

2. (

• kingdom ,
• realm

) the domain ruled by a king or queen ;

3. (

• region ,
• realm

) a knowledge domain that you are interested in or are communicating about; "it was a limited realm of discourse"; "here we enter the region of opinion"; "the realm of the occult" ;