Definition of Big Four

The Big Four are the top four companies in an industry. In the technology industry, the Big Four companies are Google, Facebook, Microsoft, and Amazon. In the accounting industry, the Big Four companies are Deloitte, EY, KPMG, and PwC.

Example: A lot of college students want to work for a Big Four company after graduating.

Usage of "Big Four" by Country

Business English is used in many different countries around the world. Some of the words and phrases listed on this site will be understood everywhere Business English is used, but some words and phrases are only used in specific countries. The map below shows where "Big Four" is most commonly used.

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About This Site

Jargonism is a Business English dictionary. You can learn about words and phrases that are commonly used in the workplace like Circle Back, Thought Leader, and Offsite. We also have a Word of the Day, which is a daily Business English vocabulary word that is commonly used in the workplace.

On this site, we also have templates on how to communicate effectively at work, such as requesting PTO, declining a promotion, and taking a sick day.

Word of the Day

Date: 08/02/2021

Word: Close It Out

Definition: To mark something as completed.

Example: This task has been fixed, so let's close it out within the task tracker.