die
dice
ox
oxen
foot
feet
life
lives
wolf
wolves
man
men
tooth
teeth
person
people
elf
elves
fish
fish
woman
women
mouse
mice
cactus
cacti
knife
knives
leaf
leaves
moose
moose
wife
wives
child
children
loaf
loaves
goose
geese
half
halves
scarf
scarves
sheep
sheep
deer
deer
self
selves