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