Mammoth Uncensored Word List:
38 words ending with en, 13 letters long

acetaminophen aircraftwomen alongshoremen assemblywomen backswordsmen brainchildren businesswomen coastguardmen congresswomen counterbidden draughtswomen ferricyanogen ferrocyanogen festschriften grandchildren griefstricken handcraftsmen lighthousemen lowerclassmen milliroentgen nightwatchmen noncarcinogen nonoverridden orthohydrogen panicstricken phytoestrogen phytopathogen privateersmen representamen semievergreen stagecoachmen storeboughten supersalesmen tropocollagen underclassmen upperclassmen weatherbeaten woodcraftsmen