This
database is a comprehensive collection of all the American idioms and slang available.
American Idioms are many and varied. We hope you enjoy our collection. We are adding more all the time.
.
to research whether or not a product will be successful by selling it in a particular market or by choosing people to use the product for a specified period of time and receiving comments from them
The computer company will begin to test market their new computer in several cities soon.