title: What is the difference and the relation between the Lisp interpreter and the Lisp image? Can they be used as synonoms?
body: <p>I noticed some people using the terms as if they were synonoms.</p>
  <p>For instance, in the same scenario, I heard &quot;add this function to the lisp image evaluating it&quot; and &quot;eval this function into the Lisp interpreter to use it later&quot;.</p>
  <p>However, I am not sure the use is technically precise. Thus, the question.</p>