leaf
leaves
quiz
quizzes
foot
feet
man
men
mouse
mice
sheep
sheep
loaf
loaves
fish
fish
child
children
wife
wives
life
lives
half
halves
person
people
woman
women
moose
moose
cactus
cacti
self
selves
wolf
wolves
elf
elves
series
series
scarf
scarves
tooth
teeth
goose
geese
matrix
matrices