In the legal setting, both work and works are related to some efforts exerted by various persons. They all have everyday meanings, but we now look at the legal meaning of the words.
Work refers to any activity that one may be engaged in under a contract aimed at performing various activities. In this sense, an employment contract is also a contract aimed at performing work, though a specific one. Contracts for services are also considered contracts for the performance of some type of work. A contracting agreement is also aimed at doing work, but the subject is more specifically referred to as works. This brings us to the meaning of " works".
The term "works” refers to the result of one's activites. In the context of contracts, works are generally used to describe various engineering projects, including building construction, design, implementation of various structures or artefacts, or simply repair or assembly works.
