Spacing Modifier Letters

Block from U+02B0 to U+02FF. This block was introduced in Unicode version 1.1 (1993). It contains 80 codepoints.

The Wikipedia provides the following information on block Spacing Modifier Letters:

Spacing Modifier Letters is a Unicode block containing characters for the IPA, UPA, and other phonetic transcriptions. Included are the IPA tone marks, and modifiers for aspiration and palatalization. The word spacing indicates that these characters occupy their own horizontal space within a line of text. Its block name in Unicode 1.0 was simply Modifier Letters.

Chart at Unicode.org (PDF)
Block at Decode Unicode

1. Modifier Letter Small H
2. Modifier Letter Small H with Hook
3. Modifier Letter Small J
4. Modifier Letter Small R
5. Modifier Letter Small Turned R
6. Modifier Letter Small Turned R with Hook
7. Modifier Letter Small Capital Inverted R
8. Modifier Letter Small W
9. Modifier Letter Small Y
10. Modifier Letter Prime
11. Modifier Letter Double Prime
12. Modifier Letter Turned Comma
13. Modifier Letter Apostrophe
14. Modifier Letter Reversed Comma
15. Modifier Letter Right Half Ring
16. Modifier Letter Left Half Ring
17. Modifier Letter Glottal Stop
18. Modifier Letter Reversed Glottal Stop
19. Modifier Letter Left Arrowhead
20. Modifier Letter Right Arrowhead
21. Modifier Letter Up Arrowhead
22. Modifier Letter Down Arrowhead
23. Modifier Letter Circumflex Accent
24. Caron
25. Modifier Letter Vertical Line
26. Modifier Letter Macron
27. Modifier Letter Acute Accent
28. Modifier Letter Grave Accent
29. Modifier Letter Low Vertical Line
30. Modifier Letter Low Macron
31. Modifier Letter Low Grave Accent
32. Modifier Letter Low Acute Accent
33. Modifier Letter Triangular Colon
34. Modifier Letter Half Triangular Colon
35. Modifier Letter Centred Right Half Ring
36. Modifier Letter Centred Left Half Ring
37. Modifier Letter Up Tack
38. Modifier Letter Down Tack
39. Modifier Letter Plus Sign
40. Modifier Letter Minus Sign
41. Breve
42. Dot Above
43. Ring Above
44. Ogonek
45. Small Tilde
46. Double Acute Accent
47. Modifier Letter Rhotic Hook
48. Modifier Letter Cross Accent
49. Modifier Letter Small Gamma
50. Modifier Letter Small L
51. Modifier Letter Small S
52. Modifier Letter Small X
53. Modifier Letter Small Reversed Glottal Stop
54. Modifier Letter Extra-High Tone Bar
55. Modifier Letter High Tone Bar
56. Modifier Letter Mid Tone Bar
57. Modifier Letter Low Tone Bar
58. Modifier Letter Extra-Low Tone Bar
59. Modifier Letter Yin Departing Tone Mark
60. Modifier Letter Yang Departing Tone Mark
61. Modifier Letter Voicing
62. Modifier Letter Unaspirated
63. Modifier Letter Double Apostrophe
64. Modifier Letter Low Down Arrowhead
65. Modifier Letter Low Up Arrowhead
66. Modifier Letter Low Left Arrowhead
67. Modifier Letter Low Right Arrowhead
68. Modifier Letter Low Ring
69. Modifier Letter Middle Grave Accent
70. Modifier Letter Middle Double Grave Accent
71. Modifier Letter Middle Double Acute Accent
72. Modifier Letter Low Tilde
73. Modifier Letter Raised Colon
74. Modifier Letter Begin High Tone
75. Modifier Letter End High Tone
76. Modifier Letter Begin Low Tone
77. Modifier Letter End Low Tone
78. Modifier Letter Shelf
79. Modifier Letter Open Shelf
80. Modifier Letter Low Left Arrow