Mammoth Uncensored Word List:
44 words ending with om, 6 letters long

abloom addoom apedom bottom carrom coelom condom custom diatom dogdom dotcom fandom fantom fathom hansom jetsom jissom lissom madtom mandom mestom netcom nincom noncom phenom pogrom pompom random ransom romcom seldom shalom sholom shroom shtoom simoom sitcom slalom syncom vagrom varoom waboom whilom wisdom