the (world/nation/industry/etc.)'s leading (something)

The #1 person or thing in a group is called "the leading ___". This is often used with job titles and professions:

  • the world's leading doctor
  • New York's leading personal trainer

You can also use this expression to talk about companies, products, etc:

They are the industry's leading seller.

We are the East Coast's leading provider of audio-visual equipment.

This phrase appears in these lessons: