Applications (4)
I believe the answer is:
uses
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">applications</span>' is the definition.<br/ ><span class="explanation-format__explanation">(use can mean an application or purpose)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for uses that I've seen before include "'Purposes, functions (4)'" , "What an employer does" , "Functions, applications" , "Purposes; consumes" , "Operates" .)