They&#x27;re being picked out because you see people do that all the time (i.e., calling an anonymous function a &quot;closure&quot;), while I don&#x27;t recall ever seeing someone referring to a random expression as a closure.<p>I&#x27;m not overly fond of calling anonymous functions &quot;lambdas&quot;, for that matter. Sure, several languages use the term lambda, but many do not. More specifically, &quot;anonymous function&quot; is much more descriptive than &quot;lambda&quot;.