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