Countable Nouns Ending in M and Containing TH

Browse 167 valid English countable nouns ending in M and containing TH, from Bathroom, Rhythm, Algorithm, Enthusiasm, Anthem, Theorem and Fathom to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review singular and plural count rules.

Refine list...
JUMP:
Sort:
Group:
Case:
View:
JUMP TO:
Select any word to view available definitions & photosSelect any word for details
Starts with A
19 words
algorithm
anthem
anthropomorphism
athenaeum
anthurium
apothegm
antilogarithm
apothem
antheridium
anethum
argyranthemum
authorism
anthodium
apothecium
antianthropomorphism
aethalium
amphithecium
anoplotherium
aetheogam
Starts with B
8 words
bathroom
biorhythm
barathrum
birthdom
brontotherium
bothrium
buphthalmum
barothermohygrogram
Starts with C
19 words
chrysanthemum
catheterism
cyclothem
cryptarithm
cologarithm
cleithrum
cyathium
ceratotherium
clavicytherium
counterenthusiasm
cerithium
cheirotherium
cleistothecium
chalicotherium
chirotherium
crocanthemum
clinanthium
coenanthium
cephalanthium
Starts with D
8 words
ditheism
deinotherium
diphyllobothrium
dilogarithm
dinotherium
dermotherm
desmepithelium
dermatherm
Starts with E
24 words
enthusiasm
earthworm
epithelium
endothelium
ectotherm
ethnicism
ethnonym
exotherm
exanthem
epithalamium
endotherm
erechtheum
ethogram
erythroxylum
elizabethanism
elotherium
erathem
erythronium
ethicism
eurytherm
endothecium
epithem
enanthem
embothrium
Starts with F
2 words
fathom
fathogram
Starts with G
3 words
gothicism
geotherm
gatherum
Starts with H
8 words
heathenism
hyperparathyroidism
homeotherm
hypanthium
helminthosporium
helianthemum
hyracotherium
hamamelidanthemum
Starts with I
4 words
isotherm
isarithm
isogeotherm
ichthyopterygium
Starts with L
4 words
logarithm
leucanthemum
lythrum
lithospermum
Starts with M
6 words
monotheism
mesothelium
megatherium
mesembryanthemum
maianthemum
mythism
Starts with N
4 words
neuroepithelium
northernism
nototherium
nipponanthemum
Starts with O
3 words
ornithogalum
orthoprism
ophthalmophyllum
Starts with P
11 words
polytheism
polyrhythm
pyrethrum
prognathism
pythium
prothalamium
poikilotherm
perithecium
plethysmogram
prothallium
parthenogonidium
Starts with R
2 words
rhythm
rhodanthemum
Starts with S
11 words
southernism
speleothem
spathiphyllum
sivatherium
samotherium
stenanthium
stenotherm
sarothrum
scelidotherium
semirhythm
salpingocatheterism
Starts with T
17 words
theorem
thunderstorm
theism
thrum
therm
thromboembolism
threadworm
thermogram
thermoform
thigmotropism
thanedom
thalictrum
tharm
tetramethylammonium
thairm
theatricism
thermotropism
Starts with U
1 words
uintatherium
Starts with X
5 words
xanthium
xanthoderm
xeranthemum
xanthidium
xerotherm
Starts with Z
3 words
zanthoxylum
zythum
zoothecium

•Browse Countable Nouns by Letter (A to Z)

Select an ending letter to browse countable nouns
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWordsVocabulary HubPositive WordsNegative Words
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.