Prefixes 1.re – again, back 2.dis – not 3.pre – before 4.mis – bad 5.un – not

Prefixes 6.ex – out 7.non – not, opposite of 8.auto – self 9.bi – two 10.en – good

Prefixes 11. co – together, with 12. de – down 13. e – out 14. in – not 15.micro – small

Prefixes 16. sub – under, below 17. trans - across 18. circum - around 19. mono - one 20. poly - many

Prefixes 21. pro - forward 22. retro - backwards 23. sym - same 24. semi – half 25. tri - three

Prefixes 26. uni - one 27. dia – through, across 28. hypo – under, below 29. mal - bad 30. pan - all

Prefixes 31. peri - around 32. psych – the mind 33. a, ab, abs – from, away 34. arch - chief 35. contra - against

Prefixes 36. di – apart 37. ex, e, ef – out of, from 38. hyper – too much 39. il, im, ir - not 40. ortho - straight

Prefixes 41. in – into, within, toward 42. in, il, im, ir – into, in, on 43. neo - new 44. post – after 45. clud, clus – close, shut

Prefixes 46. mega - large 47. com, con, col, cor - together 48. foli – leaf 49. magn - great 50. omni - all

Prefixes 51. putr - not 52. pyro – fire 53. reg, rig, rect – rule, govern 54. a – not, without 55. ante - before

Prefixes 56. anti – against 57. bio - life 58. dys – not normal 59. epi – to, over, against, added on 60. infra – below, beneath

Prefixes 61. iso - equal 62. meta – change, transform 63. pseudo - false 64. quadri – four 65. terr - land