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