Use vs. Apply vs. Employ

'Use' is a more general term that covers a broad range of actions involving the utilization of something. It implies making use of an object or method to achieve a particular purpose or function. On the other hand, 'apply' tends to have a more specific and focused meaning, often referring to the use of a method, principle, or other abstract ideas to a particular process or situation. 'Employ', refers the act of utilizing or engaging someone or something for a specific purpose or task. Like 'use', it can be used to talk about utilization of objects and methods, skills, approaches, etc. However, it is more formal than both 'use' and 'apply'. Take a look at the examples:

All three verbs imply the act of putting something into operation or effect. They are often associated with practicality and functionality. They suggest employing or applying something in a way that serves a purpose or achieves a desired outcome.