Greet; weather phenomenon (4)
I believe the answer is:
hail
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">greet</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that hail is a more specific form of the action greet)</span><br/ ><br/ >'<span class="explanation-format__original">weather phenomenon</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that hail is a type of downfall)</span><br/ ><br/ ></span>
(Other definitions for hail that I've seen before include "Greet or applaud" , "Precipitation of ice pellets" , "Icy precipitation" , "Welcome - cold shower" , "Old Roman salute, or frozen pellets" .)