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| Singular Noun | Plural Noun |
|---|
| Child | Children |
| Woman | Women |
| Man | Men |
| Tooth | Teeth |
| Foot | Feet |
| Mouse | Mice |
| Goose | Geese |
| Cactus | Cacti |
| Focus | Foci |
| Thesis | Theses |
| Analysis | Analyses |
| Datum | Data |
| Criterion | Criteria |
| Person | People |
| Leaf | Leaves |
| Calf | Calves |
| Wolf | Wolves |
| Life | Lives |
| Knife | Knives |
| City | Cities |
| Baby | Babies |
| Lady | Ladies |
| Hero | Heroes |
| Echo | Echoes |
| Potato | Potatoes |
| Tomato | Tomatoes |
| Zero | Zeroes |
| Shelf | Shelves |
| Elf | Elves |
| Index | Indices |
| Matrix | Matrices |
| Radius | Radii |
| Virus | Viruses |
| Oasis | Oases |
| Crisis | Crises |
| Phenomenon | Phenomena |
| Curriculum | Curricula |
| Medium | Media |
| Stadium | Stadiums |
| Octopus | Octopuses |
| Fish | Fish |
| Deer | Deer |
| Aircraft | Aircraft |
| Sheep | Sheep |
| Species | Species |
| Moose | Moose |
| Shrimp | Shrimp |
| Alumnus | Alumni |
| Appendix | Appendices |
| Formula | Formulae |
