Here are some possible words:
saggiest
sailboat
saltiest
samizdat
sandiest
sandwort
sanskrit
sapphist
sappiest
sassiest
satanist
satirist
sauciest
savagest
scaliest
scantest
scarcest
scariest
schubert
scilicet
seacoast
seacraft
seafront
seamiest
seamount
seascout
securest
sedatest
sediment
seediest
semisoft
semitist
sentient
serenest
sergeant
severest
shadiest
shakeout
shakiest
sharpest
sheerest
sherbert
shiniest
shipment
shootout
shoplift
shortcut
shortest
shouldst
showboat
showiest
sibilant
signpost
silkiest
silliest
siltiest
simonist
simplest
simulant
sitarist
skylight
slackest
sleekest
slickest
slimiest
slimmest
slipknot
slugfest
smallest
smartest
smokepot
smokiest
smuggest
snakiest
snapshot
snowbelt
snowiest
snowmelt
snowsuit
snuggest
soapiest
soapwort
soberest
sodalist
soggiest
solecist
solidest
somewhat
songfest
sonorant
soothest
sootiest
soppiest
sorriest
soundest
soupiest
sparsest
spiciest
spikelet
spikiest
spiniest
sprocket
sprucest
squarest
stagiest
stagnant
staidest
stakeout
stalwart
standout
standpat
stardust
starkest
steepest
sternest
stiffest
stillest
stinkpot
stockpot
stoniest
stoutest
straight
strawhat
strident
strumpet
subabbot
subagent
subdepot
subtlest
subtract
succinct
sudsiest
sulkiest
sunburnt
sunburst
sunlight
sunniest
supplant
supplest
surfiest
surliest
surmount
sveltest
swankest
sweetest
swellest
swiftest
swimsuit
symbiont
Sailboat, saint, sawdust, scapegoat, scotch, seacoast and searchlight are things that start with s and end with t. Seat, sediment, serpent, servant, settlement, shipment, shout, and somersault are things that start with s and end with the letter T.
daffiest
daggiest
damndest
decadent
decrepit
dewpoint
danewort
well if it's S _ _ U T
spout
strut
really all you have to do is look in the dictionary under the letter s, im sure theres nire than 2 words.
salient
Sandman (starts with S ends with N - 7 letter word)
Ability is a 7 letter word.
falloff
chaotic
A seven (7) letter word that starts with M and ends with O: memento
Santana
undoing
rotunda
yeshiva.
Hosanna
essence
Strains