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