A work unit is a measure of the amount of work done or energy expended. The crossword solutions for the term work unit include CREW, WEEK, PILE, ERG, JOULE, DAY, and TON. CREW is a group of people working together to accomplish a task. A WEEK is a period of seven days. A PILE is a large quantity of something heaped up. An ERG is a unit of energy equal to the work done by a force of one dyne acting over a distance of one centimeter. A JOULE is a unit of energy equal to the work done when a force of one newton is applied over a distance of one meter. A DAY is a period of 24 hours. A TON is a unit of weight equal to 2, 000 pounds.