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Irregular Plural Nouns
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louse
lice
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Okay!
medium
media
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Okay!
index
indeces
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Okay!
fish
fish
Oops!
Okay!
offspring
offspring
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Okay!
hypothesis
hypotheses
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Okay!
deer
deer
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Okay!
appendix
appendices
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Okay!
alumnus
alumni
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Okay!
cactus
cacti
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Okay!
child
children
Oops!
Okay!
series
series
Oops!
Okay!
phenomenon
phenomena
Oops!
Okay!
mouse
mice
Oops!
Okay!
sheep
sheep
Oops!
Okay!
fungus
fungi
Oops!
Okay!
goose
geese
Oops!
Okay!
woman
women
Oops!
Okay!
aircraft
aircraft
Oops!
Okay!
person
people
Oops!
Okay!
oasis
oases
Oops!
Okay!
radius
radii
Oops!
Okay!
man
men
Oops!
Okay!
matrix
matrices
Oops!
Okay!
thesis
theses
Oops!
Okay!
moose
moose
Oops!
Okay!
wolf
wolves
Oops!
Okay!
foot
feet
Oops!
Okay!
scarf
scarves
Oops!
Okay!
elf
elves
Oops!
Okay!
salmon
salmon
Oops!
Okay!
antenna
antennae
Oops!
Okay!
bacterium
bacteria
Oops!
Okay!
species
species
Oops!
Okay!
self
selves
Oops!
Okay!
wife
wives
Oops!
Okay!
knife
knives
Oops!
Okay!
tooth
teeth
Oops!
Okay!
vertebra
vertebrae
Oops!
Okay!
loaf
loaves
Oops!
Okay!
analysis
analyses
Oops!
Okay!
formula
formulae
Oops!
Okay!
quiz
quizzes
Oops!
Okay!
leaf
leaves
Oops!
Okay!
ox
oxen
Oops!
Okay!
life
lives
Oops!
Okay!
die
dice
Oops!
Okay!
axis
axes
Oops!
Okay!
half
halves
Oops!
Okay!
nucleus
nuclei
Oops!
Okay!
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