Countable Nouns That Start with S and End with UM

Explore 182 verified English countable nouns starting with S and ending with UM, including Sum, Stadium, Spectrum, Serum, Slum, Symposium and Scum. Sort these count nouns with singular and plural forms by word length for ESL grammar practice, determiner usage, and plural spelling below, or review singular and plural count rules in our noun grammar guide.

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sanctum
sanatorium
sanitarium
sacrum
sargassum
saeculum
saccharum
sacramentum
sacrarium
santalum
sacerdotium
sabbatum
sagum
sapium
sauromatum
sarmentum
sacellum
samotherium
sarcoseptum
sarothrum
salutatorium
salicetum
saccolabium
sarcodictyum
scum
scrum
scrotum
scriptorium
scutum
scutellum
scholium
sclerotium
scolopendrium
scalpellum
scybalum
schizophyllum
scalenum
scabellum
schizachyrium
schizotrypanum
scaphosepalum
scelidotherium
sceuophylacium
scalprum
scissorium
scaum
serum
septum
sedum
sensorium
seaquarium
sesamum
sempervivum
severum
sedilium
sensillum
sensum
sepium
septennium
sequestrum
sestertium
separatum
sexennium
septarium
sericterium
simulacrum
signum
silphium
sistrum
silybum
sigillum
significatum
simpulum
simulium
sisymbrium
siglum
sium
simplum
sisyrinchium
simillimum
siphonium
sivatherium
sicilicum
Starts with SK
2 words
skookum
skellum
Starts with SL
1 words
slum
sorghum
solarium
solanum
solum
solatium
soum
sourgum
soliloquium
soredium
solstitium
soralium
solenium
sorosporium
spectrum
speculum
sputum
sporangium
sphagnum
spermatogonium
splenium
spirillum
spathiphyllum
spatium
spiculum
spermarium
sparganum
spermogonium
sporogonium
sparganium
spermatium
spiraculum
spermatovum
spartium
spatlum
sporidium
sporangiolum
sphaeridium
stadium
stratum
strum
sternum
striatum
stramonium
stumblebum
stellium
stomium
stomodeum
staminodium
stylopodium
stylophorum
stenanthium
stenotaphrum
stylidium
stichidium
sum
substratum
subforum
sugarplum
superpremium
supremum
suboptimum
subphylum
subminimum
subgum
superstratum
sudarium
superphylum
sustentaculum
succedaneum
sulfonium
sudatorium
supernaculum
suppedaneum
submentum
suspensorium
surrogatum
subdelirium
subsellium
Starts with SW
1 words
sweetgum
symposium
syncytium
syngonium
syzygium
syllabarium
syconium
symphytum
synclinorium
sympodium
synedrium
synsacrum
synangium
synandrium

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