Mammoth Uncensored Word List:
66 words ending with om, 9 letters long

antivenom beadledom beggardom bishopdom boardroom breadroom broadloom bumbledom checkroom classroom cloakroom coupledom courtroom cuckoldom dufferdom elbowroom emblossom enfreedom greenroom grillroom guardroom guestroom hippiedom houseroom kaiserdom lunchroom maelstrom martyrdom masterdom multiatom multiroom niggerdom noncustom nonrandom noodledom overgloom polypidom pressroom princedom proofroom puzzledom rascaldom reblossom sachemdom salesroom savagedom seabottom sheikhdom shelfroom singledom squiredom stackroom staffroom stateroom stillroom stockroom storeroom superatom therefrom thralldom ultrazoom unchrisom unfreedom wagenboom wherefrom yuppiedom