Homonym: Essential (Fundamental)
"Essential" refers to something that is absolutely necessary or fundamental. It signifies the core elements that are required for a particular purpose or function. For example, in a healthy diet, essential nutrients like vitamins and minerals are crucial for maintaining overall well-being. Without these key components, the body may not function optimally.
In various contexts, the term "essential" can also describe items or services that are vital for daily life. For instance, essential workers are those whose jobs are critical during emergencies, such as healthcare professionals and first responders. Their roles are indispensable for the safety and functioning of society.