other ways to say best friend

Certainly! Here are various ways to refer to a best friend:

1. Closest companion
2. Dearest friend
3. Trusted confidant
4. Bosom buddy
5. Kindred spirit
6. Soul mate
7. Comrade-in-arms
8. Partner-in-crime
9. Ride-or-die
10. BFF (Best Friend Forever)
11. Amigo/amiga
12. Chum
13. Pal
14. Cohort
15. Sidekick
16. Playmate
17. Ally
18. Confidante
19. Compadre/compadre
20. Familiar
21. Companion
22. Confidant
23. Confidante
24. Crony
25. Cullyn
26. Bestie
27. Main squeeze
28. Mate
29. BFFL (Best Friend For Life)
30. Bezzie
31. Homey
32. Homie
33. Brother/sister from another mother
34. Partner
35. Buddy
36. Sidekick
37. Fellow traveler
38. Wingman/woman
39. Close buddy
40. Trusted pal
41. BFFAE (Best Friend Forever And Ever)
42. Fam
43. Best bud
44. Kindred soul
45. Pard
46. Best mate
47. Blood brother/sister
48. Ride-or-die friend
49. Close friend
50. Comrade
51. Cohort
52. Friendly companion
53. Main man/woman
54. Platonic partner
55. Chosen family
56. Homie G
57. Sister/brother
58. Best pal
59. Playmate
60. Beloved
61. Close associate
62. Significant other (platonic)
63. Pen friend
64. Backing
65. Associate
66. Ally
67. Familiar
68. Acquaintance
69. Classmate
70. Confidant
71. Mate
72. BFF (Best Friend Forever)
73. Dear friend
74. Close friend
75. Chum
76. Buddy
77. Companion
78. Partner
79. Pal
80. Bestie
81. Amigo/amiga
82. Cohort
83. Confidante
84. Comrade
85. Sidekick
86. Playmate
87. Soul mate
88. Bosom buddy
89. Kindred spirit
90. Main squeeze
91. Ally
92. Bezzie
93. Homey
94. Fam
95. Brother/sister from another mother
96. Partner-in-crime
97. Ride-or-die
98. BFFL (Best Friend For Life)
99. Chosen family
100. Blood brother/sister
101. Pard
102. Best mate
103. Homie
104. Compadre/compadre
105. Crony
106. Cohort
107. Close buddy
108. Trusted pal
109. BFFAE (Best Friend Forever And Ever)
110. Best bud
111. Homie G
112. Brother/sister
113. Playmate
114. Beloved
115. Platonic partner
116. Significant other (platonic)
117. Pen friend
118. Backing