Nouns Ending in UM and Containing S
Browse 480 valid English nouns ending in UM and containing S, from Sum, Museum, Stadium, Spectrum, Sodium, Asylum and Consortium to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review pluralization and capitalization rules.
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Starts with A19 words
asylum
antiserum
alyssum
asphaltum
adsum
abomasum
adstratum
asarum
aspergillum
aspidium
appressorium
asplenium
anisum
aspersorium
ascidium
androsporangium
archesporium
ascogonium
amphigastrium
Starts with B
2 words basidium
brosimum
Starts with C24 words
consortium
colosseum
coliseum
capsicum
chrysanthemum
cesium
checksum
colostrum
clostridium
cryptosporidium
conservatorium
callosum
cusum
castoreum
cestrum
claustrum
castellum
cladosporium
causatum
cephalosporium
clausum
closterium
crissum
cynoglossum
Starts with D18 words
disequilibrium
disodium
desideratum
dorsum
dysprosium
demonstrandum
depositum
designatum
darmstadtium
desiderium
desmodium
dichasium
dimensum
desmepithelium
diascordium
diclesium
disciplinarium
desmidium
Starts with E24 words
elysium
einsteinium
endomysium
equisetum
epigastrium
endosteum
epimysium
emplastrum
ergastulum
episternum
ensisternum
ecomuseum
exosporium
endostracum
erysimum
expansum
entomosporium
evangelistarium
episporangium
emissarium
eusporangium
entosternum
exobasidium
endosporium
Starts with F6 words
frustum
fusarium
fideicommissum
falsum
fastigium
fastidium
Starts with G7 words
gymnasium
gypsum
gasherbrum
gelsemium
grassum
gynostemium
gastraeum
Starts with H12 words
hospitium
hippeastrum
helichrysum
hassium
haustorium
hedysarum
hypogastrium
helminthosporium
hesperidium
haustellum
hymenosporum
humstrum
Starts with I7 words
ischium
insectarium
indusium
infusorium
iridosmium
interministerium
isodomum
Starts with J
1 words jasminum
Starts with L9 words
lebensraum
lustrum
leprosarium
ligustrum
leptospermum
lithospermum
leucospermum
lectisternium
laserpicium
Starts with M24 words
museum
magnesium
mausoleum
mediastinum
magisterium
molluscum
meerschaum
marsupium
moscovium
mesothelium
menstruum
ministerium
microsporangium
megasporangium
mesogastrium
macrosporangium
mesembryanthemum
mesothorium
masurium
malvastrum
monochasium
mashlum
myosotidium
metapostscutellum
Starts with N4 words
nasturtium
nostrum
nielsbohrium
nitrosobacterium
Starts with O16 words
opossum
osmium
ostium
omasum
osculum
opusculum
osmiridium
ostensorium
osteospermum
organistrum
ossarium
osmeterium
osteoglossum
odontoglossum
offscum
opsonium
Starts with P24 words
potassium
postpartum
possum
proscenium
presidium
psyllium
plasmodium
positronium
praseodymium
periosteum
pittosporum
pennisetum
pseudopodium
phosphonium
perimysium
prostomium
paspalum
presternum
pessimum
postulatum
psalterium
periostracum
pastorium
pityrosporum
Starts with Q
1 words quaesitum
Starts with R15 words
rostrum
residuum
responsum
radiostrontium
rosarium
rostellum
respondendum
resilium
resorcinum
respectum
rastrum
rhynchosporium
rusticum
respiratorium
restibrachium
Starts with S24 words
sum
stadium
spectrum
sodium
serum
slum
symposium
scum
stratum
scrum
strum
septum
scrotum
selenium
sanctum
sternum
sorghum
speculum
sputum
sanatorium
solarium
sanitarium
simulacrum
sacrum
Starts with T6 words
transuranium
testatum
trachelospermum
tripleurospermum
tetrasporangium
trichosporangium
Starts with U
2 words understratum
unnilseptium
Starts with V8 words
vestibulum
verbascum
vulsellum
vestigium
vasculum
veronicastrum
viscum
vivisectorium
Starts with X3 words
xiphisternum
xiphosternum
xylobalsamum
Starts with Z3 words
zoosporangium
zygosporangium
zoospermium