Buss (4)
I believe the answer is:
kiss
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">buss</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that buss can be written as kiss)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for kiss that I've seen before include "Greet with lips" , "Cross" , "Peck (on cheek or lips?)" , "Touch lightly - a sign of affection" , "Evidence of romance" .)