child
children
man
men
series
series
mouse
mice
goose
geese
bacterium
bacteria
tooth
teeth
sheep
sheep
ox
oxen
knife
knives
person
people
wife
wives
salmon
salmon
scarf
scarves
fish
fish
self
selves
leaf
leaves
foot
feet
louse
lice
life
lives
half
halves
loaf
loaves
die
dice
woman
women
wolf
wolves
phenomenon
phenomena
deer
deer
moose
moose