Longman Dictionary of Contemporary English homepage

trade secret

 noun
     
Related topics: Trade
trade secret [countable]
1BBT a piece of secret information about a particular business, that is only known by the people who work there:
The Coca-Cola formula is a well-kept trade secret.
2 informal a piece of information about how to do or make something, that you do not want other people to know:
Could you give me the recipe for that 'coq au vin' or is it a trade secret?
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary

Browse the dictionary