bailiwick

his expertise falls within the realm of his bailiwick.

the new project is outside my bailiwick.

she is well-respected in her bailiwick of environmental science.

understanding local laws is part of my bailiwick as a lawyer.

he often collaborates with others outside his bailiwick.

this issue falls squarely within her bailiwick.

my bailiwick includes financial analysis and reporting.

they are expanding their bailiwick to include new technologies.

he is an authority in his bailiwick of historical research.

her bailiwick encompasses a wide range of artistic disciplines.