leaf
leaves
goose
geese
child
children
cactus
cacti
fish
fish
sheep
sheep
woman
women
foot
feet
elf
elves
wolf
wolves
calf
calves
deer
deer
scarf
scarves
potato
potatoes
volcano
volcanoes
loaf
loaves
tomato
tomatoes
tooth
teeth
person
people
man
men
mouse
mice