Countable Nouns That Start with S and End with IUM

Explore 81 verified English countable nouns starting with S and ending with IUM, including Stadium, Symposium, Sanatorium, Solarium, Sanitarium, Sporangium and Superpremium. 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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Starts with SA8 words
sanatorium
sanitarium
sacrarium
sacerdotium
sapium
samotherium
salutatorium
saccolabium
Starts with SC8 words
scriptorium
scholium
sclerotium
scolopendrium
schizachyrium
scelidotherium
sceuophylacium
scissorium
Starts with SE9 words
sensorium
seaquarium
sedilium
sepium
septennium
sestertium
sexennium
septarium
sericterium
Starts with SI7 words
silphium
simulium
sisymbrium
sium
sisyrinchium
siphonium
sivatherium
Starts with SO8 words
solarium
solatium
soliloquium
soredium
solstitium
soralium
solenium
sorosporium
Starts with SP13 words
sporangium
spermatogonium
splenium
spatium
spermarium
spermogonium
sporogonium
sparganium
spermatium
spartium
sporidium
sphaeridium
spermatangium
Starts with ST9 words
stadium
stramonium
stellium
stomium
staminodium
stylopodium
stenanthium
stylidium
stichidium
Starts with SU8 words
superpremium
sudarium
sulfonium
sudatorium
suspensorium
subdelirium
subsellium
succinctorium
Starts with SY11 words
symposium
syncytium
syngonium
syzygium
syllabarium
syconium
synclinorium
sympodium
synedrium
synangium
synandrium

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