Monday

scroll, seam, secondary, selection, senate, senator, senior, sensation, sensible, sentry

Tuesday

sermon, session, shabby, shame, shampoo, shatter, shave, sheer, shellac, shilling

Wednesday

shingle, shred, shrimp, shutter, signature, similar, site, skeleton, skid, skillful

Thursday

skull, slack, slain, slang, slate, slaughter, slavery, slay, sledge, sleek

Friday

sleet, slim, sling, slit slot, slumber, slump, slung, slush, smash