Nouns Ending in ER and Containing OS

This list gathers 169 English nouns ending in ER and containing OS, such as Closer, Loser, Poster, Roster, Composer, Philosopher and Booster. Use the sorting controls below to organize entries by length, or consult our noun grammar guide to review pluralization and capitalization rules.

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Starts with A
2 words
autosampler
apposer
Starts with B
5 words
booster
brownnoser
billposter
boshter
brosier
Starts with C
24 words
closer
composer
crossover
cosplayer
cosigner
composter
chooser
costumer
crosser
crossbencher
crosier
crossmember
costermonger
coster
costumier
crossbearer
cocomposer
cosmographer
crossbower
crossworder
crosscutter
cooser
cosher
crosshatcher
Starts with D
11 words
dossier
decomposer
defroster
dosser
disposer
dosimeter
discloser
deposer
doser
drosometer
dentiroster
Starts with E
6 words
embosser
exposer
encloser
echosounder
engrosser
endosmometer
Starts with F
6 words
flosser
fosterer
flyposter
fossicker
flossflower
fooster
Starts with G
15 words
ghostwriter
gossamer
ghostbuster
gossiper
gossipmonger
glosser
goosander
gospeler
gospeller
grossglockner
gyrostabilizer
goster
glossographer
gastrosopher
glossodynamometer
Starts with H
8 words
hoser
hostler
hospitaller
hosteller
hosier
hospitaler
hosteler
hematospectrophotometer
Starts with I
2 words
interposer
imposer
Starts with J
3 words
josher
jostler
josser
Starts with K
1 words
kosher
Starts with L
4 words
loser
lossmaker
loosener
leaftosser
Starts with M
10 words
mosher
motocrosser
microscooter
mosstrooper
mosser
monoskier
microspectrophotometer
microseismometer
mossbunker
mossbluiter
Starts with N
7 words
nosher
noser
nooser
nonphilosopher
noncrossover
noncomposer
nosographer
Starts with O
8 words
opposer
ostler
osier
osmometer
ostracizer
ossifier
ophthalmostatometer
ostreodynamometer
Starts with P
24 words
poster
philosopher
poser
postmaster
proposer
prosumer
proselytizer
postholder
positioner
paternoster
philosophizer
posturer
photosensitizer
postponer
phosphodiester
proscriber
photosetter
posser
postmodifier
proser
photocomposer
postrider
prosopographer
physiophilosopher
Starts with R
8 words
roster
rooster
rosewater
rosser
reposer
rooser
rosiner
rosaker
Starts with S
5 words
shitposter
subpostmaster
snollygoster
supposer
sprosser
Starts with T
6 words
tosser
transposer
theosopher
troposcatter
tosher
turbosupercharger
Starts with U
1 words
unbosomer
Starts with V
3 words
viscosimeter
vermicomposter
variolosser
Starts with W
2 words
wooster
wallposter
Starts with Z
2 words
zoster
zymosimeter

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