domains
do-mains
noun
Areas of land or activity under someone's control or influence.
"The monarch's domains covered vast territories."
noun
Unique names identifying websites or networks on the internet.
"Many companies are buying new internet domains."
noun
Specific fields of knowledge, activity, or responsibility.
"These are distinct domains of scientific research."
Thesaurus
Synonyms: domain of a function, knowledge domain, knowledge base, orbit, area, arena, field, sphere, demesne, land, world