Countable Nouns Ending in UM and Containing I
This list gathers 887 English countable nouns ending in UM and containing I, such as Medium, Minimum, Premium, Maximum, Stadium, Curriculum and Millennium. Use the sorting controls below to organize entries by length, or consult our noun grammar guide to review singular and plural count rules.
Refine list...
Starts with A
24 words aquarium
auditorium
atrium
allium
antiserum
anthurium
alluvium
armamentarium
antirrhinum
aconitum
androecium
antheridium
archegonium
apodyterium
aeonium
antependium
archaebacterium
adenium
adiantum
adminiculum
allodium
anacardium
animalculum
aspergillum
Starts with B
23 words bacterium
biennium
botulinum
basidium
bdellium
bifidum
brachium
ballium
buccinum
bucranium
bullarium
bimillennium
bronchium
brontotherium
brosimum
botrychium
bothrium
bulbocodium
benzenediazonium
bromatium
brimborium
botrydium
bivium
Starts with C
24 words curriculum
consortium
continuum
condominium
coliseum
compendium
colloquium
crematorium
capsicum
cranium
columbarium
clostridium
cryptosporidium
collegium
corium
corrigendum
cymbidium
cambium
caladium
criterium
cyanobacterium
conservatorium
cilium
ciborium
Starts with D
24 words delirium
dictum
delphinium
disequilibrium
diverticulum
desideratum
dolphinarium
decennium
diluvium
definiendum
depositum
dendrobium
dentalium
diazonium
designatum
deinotherium
deliquium
desiderium
desmodium
domatium
diphyllobothrium
dockominium
dolium
digitorium
Starts with E
24 words equilibrium
epithelium
emporium
endometrium
elysium
euphonium
endothelium
encomium
endocardium
effluvium
epicardium
exordium
eulogium
epineurium
epiphyllum
evangelium
endomysium
equisetum
eryngium
epithalamium
epigastrium
eupatorium
epimedium
explicandum
Starts with F
19 words freemium
falciparum
filum
fusarium
folium
frigidarium
fideicommissum
filopodium
formicarium
florilegium
fumatorium
fastigium
fastidium
faciendum
farfugium
falcatifolium
favelidium
favellidium
flabellarium
Starts with G
16 words gymnasium
geranium
gynoecium
guaiacum
gymnatorium
gelsemium
graphium
gymnocalycium
glochidium
gonium
gametangium
glaucium
gnaphalium
gonidium
gynostemium
glaucidium
Starts with H
24 words honorarium
harmonium
herbarium
hilum
hypericum
hospitium
hypochondrium
hippeastrum
helichrysum
hydronium
hibernaculum
heliotropium
haustorium
hymenium
hypanthium
hypogastrium
horologium
helenium
helminthosporium
helianthemum
hydropericardium
hyracotherium
hesperidium
hieracium
Starts with I
24 words interregnum
imperium
infimum
ileum
inoculum
indecorum
ilium
ischium
infundibulum
incunabulum
indicium
insectarium
ignotum
impluvium
intermedium
indusium
idolum
individuum
involucrum
illuvium
indumentum
ideatum
illicium
infusorium
Starts with J
1 words jasminum
Starts with L
24 words linoleum
labium
lycopodium
lilium
leprosarium
lignum
ligustrum
linum
latifundium
lamellipodium
lamium
leontopodium
limonium
lycium
lepidium
lithospermum
lolium
lectisternium
lobopodium
lixivium
latrocinium
laconicum
lubritorium
lygodium
Starts with M
24 words medium
minimum
maximum
millennium
moratorium
modicum
mycelium
myocardium
myometrium
mediastinum
magisterium
manubrium
mycobacterium
marsupium
milium
mesothelium
muonium
megatherium
ministerium
microsporangium
megasporangium
mesogastrium
melampodium
monopodium
Starts with N
16 words nasturtium
natatorium
neuroepithelium
nerium
nanobacterium
nephridium
nitronium
nitrobacterium
nelumbium
nickum
nidularium
nitrenium
nidamentum
nitrosobacterium
nototherium
nipponanthemum
Starts with O
24 words optimum
omnium
ostium
oceanarium
onium
origanum
oppidum
oogonium
ommatidium
oncidium
oidium
ornithogalum
osmiridium
ostensorium
orarium
organistrum
oxonium
ossarium
osmeterium
onychium
orontium
ordalium
opsonium
ophidiarium
Starts with P
24 words premium
podium
pandemonium
palladium
practicum
planetarium
perineum
proscenium
presidium
psyllium
peritoneum
pericardium
penicillium
plasmodium
paramecium
primordium
philtrum
praetorium
positronium
pelargonium
periosteum
pallium
pilum
pittosporum
Starts with Q
5 words quadrennium
quadrivium
quinquennium
quadriennium
quaesitum
Starts with R
14 words residuum
reticulum
rhizobium
retinaculum
refugium
radiostrontium
rosarium
reptilium
resilium
rhynchosporium
rhipidium
respiratorium
ranarium
restibrachium
Starts with S
24 words stadium
symposium
sanatorium
solarium
sanitarium
simulacrum
striatum
sporangium
superpremium
scriptorium
signum
syncytium
suboptimum
subminimum
sensorium
silphium
solatium
syngonium
sistrum
stramonium
seaquarium
stellium
scholium
spermatogonium
Starts with T
24 words terrarium
trapezium
trillium
trivium
tentorium
triduum
triennium
transuranium
triticum
tepidarium
triclinium
triforium
trifolium
tetrazolium
triquetrum
tertium
teucrium
tillicum
termitarium
talinum
thalictrum
trachelium
taurobolium
tetramethylammonium
Starts with U
7 words ultimatum
unicum
uredium
unguentarium
uropygium
uintatherium
uredinium
Starts with V
21 words valium
viburnum
vivarium
vomitorium
viaticum
verticillium
vinculum
vexillum
vaccinium
velarium
vestibulum
variorum
vestigium
veronicastrum
viscum
vibraculum
videndum
venidium
vivisectorium
viticetum
vibracularium
Starts with X
6 words xanthium
xiphisternum
xiphosternum
xenium
xenodochium
xanthidium
Starts with Z
11 words zoosporangium
zygosporangium
zooecium
zoarium
zygomaticum
zoospermium
zoogonidium
zoothecium
zoocecidium
zoocytium
zoodendrium