chroococcus church-door church-scot churchdoors coconstruct common-room commonround conductours conotrochus conotruncus constructor cottonmouth couscoussou dromochorus homodromous hot-to-trot houndstooth monchsroth monochroous monostomous mortsshorts motormouths nonhumorous nonsonorous north-south northchurch nortonsound nossoncourt orthocormus orthosuchus orthotomous rhodococcus scotchnotch scoutshonor shortcrusts shush-shush smoothhound somorrostro southchurch stomochords strumstrums tountouroun uncommoncon unhumourous unmonstrous