Poss

2 clues
Gram. case
Grammar case: Abbr.
Similar answers:
Aarpvpoksbyob
Aasponsor
Aass
Abackwardpoet
Abandononespost
Abandonsshop
Abaseabass
Abbess
Abbesses
Abcess
Abcsports
Abiss
Abjectpovert
Abovegroundpool
Abpositive
Abrassband
Abscess
Abscesses
Abscissa
Abscissae