The term FARM TROUGH can be broken down into two words, FEEDER (6 letters) and FARM (4 letters). A FARM trough is a large container used to store and dispense feed for animals such as horses, cows, and sheep. It is typically made of metal or plastic and is designed to hold large amounts of feed. The FEEDER portion of the trough is usually a long tube or pipe that extends from the trough and allows the animals to access the feed.