This document lists the plural forms of 59 different nouns. It provides the singular form, followed by one or two possible plural forms. Some common plural endings included are -s, -es, -a, -i. A few nouns have irregular plurals like children, deer, or criteria that do not follow typical pluralization rules.

1. Plural forms
1. Aquarium – aquariums
2. Analysis – analyses
3. Apparatus – apparatuses
4. Appendix – appendices
5. Aircraft – aircrafts
6. Bacillus – bacilli
7. Calf – calves
8. Bureau – bureau/bureaus
9. Child – children
10. Criterion – criteria
11. Deer – deer
12. Diagnosis – diagnoses
13. Dwarf – dwarfs
14. Erratum – errata
15. Formula – formulae
16. Focus – foci
17. Hypothesis – hypotheses
18. Locus – loci
19. Medium – media
20. Nucleus – nuclei
21. Ovum – ova
22. Phenomenon – phenomena
23. Radius – radii
24. Stylus – styluses
25. Syllabus – syllabi
26. Stimulus – stimuli
27. Species – species
28. Terminus – termini
29. Tooth – teeth
30. Volcano – volcanos/volcanoes
31. Wolf – wolves
32. Alumnus – alumni
33. Apex – apexes/apices
34. Antenna – antennae/antennas
35. Bacterium – bacteria
36. Basis – bases
37. Cactus – cacti
38. Chasis – chasses
39. Crisis – crises
40. Datum – data

2. 41. Dictum – dicta
42. Dilettante – dilettanti
43. Ferry – ferries
44. Foot – feet
45. Forum – for a
46. Fungus – fungi
47. Index – indices
48. Matrix – matrices
49. Memorandum – memoranda
50. Nebula – nebulae
51. Oasis – oases
52. Plateau – plateau
53. Stratum – strata
54. Symposium – symposiums
55. Synopsis – synopses
56. Tableau – tableaux
57. Thesis – theses
58. Ultimatum – ultimata
59. Vertebra – vertebrae