Objects
People
Animals
Body Parts
What's the Singular?
100

Car

Cars

100

Man

Men

100

Deer

Deer

100

Eyelash

Eyelashes

100

Dice

Die

200

Box

Boxes

200

Person

People

200

Ox

Oxen

200

Tooth

Teeth

200

Criteria

Criterion

300

Sandwich

Sandwiches

300

Child

Children

300

Goose

Geese

300

Foot

Feet

300

Data

Datum

400

Potato

Potatoes

400

Wife

Wives

400

Sheep

Sheep

400

Vertebra

Vertebrae or

Vertebras

400

Bacteria

Bacterium

500

Shelf

Shelves

500

Baby

Babies

500

Mouse

Mice

500

Ovum

Ova

500

Graffiti

Graffito