Sharers' possessive (4)
(Other definitions for ours that I've seen before include "The French bear" , "What we share" , "Yours and mine!" , "Indiscriminate slaughter" , "Relating or belonging to us" .)
(Other definitions for our that I've seen before include "Yours and mine" , "Belonging to us" , "'-- House' (Madness song)" , "Relating to us" , "group possession?" .)