line of business

• Phrase désignant le secteur d'activité, le domaine ou le type d'activité commerciale dans lequel une entreprise ou une personne est principalement engagée.

A phrase referring to the specific industry, trade, or type of commercial activity in which a company or individual is primarily engaged.

1. Type of industry or tradeB2formal

   The specific industry, trade, or type of commercial activity a company or person is involved in.

   secteur d'activité

   • Her line of business is real estate development.
   • The company decided to expand into a new line of business.
   • What line of business are you in?

2. Area of expertiseB2formal

   A particular field or area in which someone has specialized knowledge or skill.

   domaine d'expertise

   • Marketing is not my line of business; I'm an engineer.
   • He is well-known in his line of business as a consultant.
   • She found her true line of business in graphic design.