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