What is the difference between a and the

What is the difference between a and the What is the difference between a hill and a pill? What is the difference between a monkey and a flea? What is the difference between a firm and an industry? What is the difference between a phoneme and an allophone? what is the difference between A and what are the difference what is the difference between " What is the difference between the terms “entity” and “equit what is the difference between the infinitive marker to and what is the difference between the words happy and funny? What is the difference between the capital of russia and a c what is the difference between stakeholder and shareholder?