alga, alumnus, appendix, arch, axis
baby, bacterium, beau, bus
cactus, calf, cattle, child, city, criterion, curriculum
deer, die, dwarf
echo, elf, embargo
fish, foot, fungus
goose
half, hero, hoof
index
knife
leaf, life, life, loaf, loaf, louse
man, matrix, moose, mosquito, mouse
nucleus
octopus, ovum, ox
pajamas, pants, person, phenomena, phenomenon, potato
quiz
scarf, scissors, self, sheep, shelf, shorts, slacks, species, syllabus
that, these, thief, this, tights, tongs, tooth, trousers
watch, wife, wolf, woman
zero
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