bombast
metals
A 7-letter word that contains the letters C, A, S, and M is "scamper."
squeals
zygotes
success
therein
effaced, efforts, effects
algebraarrestsascendsbenefitboredombreederbreezescarefulcateredcheesescheereddeceivedefencedemeritdeservedetestsdevelopdigestsdinettediverseexpectsexpanseexpenseexpertsextendsforeignforestsforeverfriendsfreedomfreewaygreetedimpedesinheritintenseinventsinversemementomiserlyoffencepageboyparentspovertypreemptreceiverepentsreleaserepealsrevealsresealsreverseselectssleevessneezessomedaysteeplesteeredstretchtalentsthreads
bellhop
abdomen
Some people maintain that "rhythms" qualifies. I don't.
therein