Gherkin is a term used to refer to two different vegetables: PICKLE and CUCUMBER. Pickles are cucumbers that have been preserved in vinegar or brine, while cucumbers are a type of edible fruit that is usually eaten raw. Both pickles and cucumbers are popular ingredients in salads and sandwiches, and they can also be used to make sauces and relishes. Gherkin is also a term used to describe a small, round, green vegetable that is similar in shape to a CUCUMBER but has a much stronger flavor. This type of gherkin is often used to make pickles and is a popular ingredient in many dishes.