No changedeer-deer
offspring-offspring
fish-fish
sheep-sheep
moose-moose
species-species
oo – eefoot-feetgoose-geesetooth-teeth
Suffix -enbrother-brethren (archaic)
ox-oxen
child-children
woman -women
man-men
ou – i…elouse-licemouse-mice
o +
suffix -es
banjo-banjo(e)s
dingo – dingoes
embargo – embargoes
ghetto – ghetto(es)
hobo – hoboes
mosquito – mosquito(e)s
tomato – tomatoes
tuxedo-tuxedo(e)s
buffalo-buffalo(e)s
domino – domino(e)s
flamingo – flamingo(e)s
halo – halo(e)s
mango – mango(e)s
motto – motto(e)s
tornado – tornadoes
veto – vetoes
cargo – cargo(e)s
echo – echoes
gecko – geckoes
hero – heroes
memento – memento(e)s
potato – potatoes
torpedo – torpedoes
volcano – volcano(e)s
us – ialumnus – alumni
cactus – cacti
focus – foci
nucleus – nuclei
terminus – termini
bacillus – bacilli
calculus – calculi
fungus – fungi
radius – radii
bronchus – bronchi
embolus – emboli
meniscus – menisci
stimulus – stimuli
is – esanastomosis – anastomoses
basis – bases
ellipsis – ellipses
neurosis – neuroses
parenthesis –parentheses
synthesis – syntheses
axis – axes
crisis – crises
emphasis – emphases
oasis – oases
prognosis – prognoses
synopsis -synopses
analysis – analyses
diagnosis – diagnoses
hypothesis – hypotheses
paralysis – paralyses
prosthesis – prostheses
thesis – theses
eau – eauxbandeau – bandeaux
chateau – chateaux
plateau – plateaux
tonneau – tonneaux
beau – beax
flambeau – flambeaux
portmanteau -portmanteaux
trousseau – trousseaux
bureau – bureaux
gateau – gateaux
tableau – tableaux
a – aealga – algae
formula – formulae
vertebra – vertebrae
amoeba – amoebae
larva – larvae
vita -vitae
antenna – antennae
nebula – nebulae
ex – esapex – apices
index – indices
vortex – vortices
cervix – cervices
matrix – matrices
appendix – appendices
vertex – vertices
um – aaddendum – addenda
datum – data
epithelium – epithelia
ovum – ova
bacterium – bacteria
erratum – errata
medium – media
stratum – strata
curriculum – curricula
diverticulum – diverticula
memorandum – memoranda
symposium – symposia
on – aautomaton – automata
phenomenon – phenomena
criterion – criteria
spermatozoon – spermatozoa
ganglion – ganglia
us – acorpus – corporagenus – genera
en – aforamen – foraminalumen – lumina
o – ilibretto – librettitempo – tempivirtuoso – virtuosi
Suffix -imcherub – cherubimseraph – seraphim

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