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100 Best Synonyms for “Letter”

September 9, 2026

100 Best Synonyms for

No. Item Definition
1. acceptance a written agreement to an offer
2. acknowledgment a written confirmation of receipt
3. admonition a written caution or rebuke
4. advisory an official written warning
5. alert a written warning notice
6. announcement a public written statement
7. answer a written reply
8. apology a written expression of regret
9. appeal a written urgent request
10. application a formal written request
11. billet-doux a romantic written note
12. bulletin a brief official announcement
13. card a brief written greeting
14. certification a written official confirmation
15. chain mail a message forwarded repeatedly
16. circular a notice sent to many people
17. citation an official written summons or notice
18. communication a conveyed written message
19. communiqué an official public statement
20. complaint a written statement of grievance
21. condolence a written expression of sympathy
22. correspondence written exchange of messages
23. declaration a formal written statement
24. demand a written forceful request
25. denial a written refusal or contradiction
26. deposition a sworn written testimony
27. description a written account of something
28. directive a written official instruction
29. dispatch an official written message
30. document a written paper or file
31. draft a preliminary written version
32. e-mail an electronic written message
33. email an electronic written message
34. epistle a formal or literary written message
35. facsimile a faxed document
36. fan mail admiring messages from supporters
37. fax a document sent electronically by phone
38. filing a submitted official document
39. greeting card a card with a personal message
40. grievance a written formal complaint
41. guidance written advice or direction
42. hate mail hostile written messages
43. hint a brief written suggestion
44. instant message a real-time electronic message
45. instruction a written direction
46. invitation a written request to attend
47. license a written official permission
48. love note a romantic written message
49. mail sent written communications
50. mandate a written official command
51. manifesto a public written declaration of beliefs
52. memo a brief workplace message
53. memorandum a brief official written message
54. message a written communication
55. missive a formal written communication
56. narrative a written account of events
57. newsletter a regular informational mailing
58. note a short written message
59. notice a written announcement
60. notification a written formal alert
61. objection a written expression of disagreement
62. offer a written proposal to provide something
63. order a written command
64. paper a written document
65. permit a written authorization
66. petition a written request with signatures
67. plea a written earnest request
68. post mailed written communication
69. postcard a short mailed card message
70. proclamation an official public declaration
71. proposal a written plan or offer
72. protest a written statement of opposition
73. rebuke a written expression of disapproval
74. recommendation a written endorsement of someone
75. reference a written recommendation
76. refusal a written rejection
77. rejection a written refusal
78. reminder a written prompt to remember
79. reply a written response
80. reprimand a written formal rebuke
81. request a written appeal for something
82. response a written answer
83. salutation a written greeting
84. SMS a mobile text message
85. statement a written declaration
86. submission a written item submitted for review
87. subpoena a legal order to appear
88. summons an official order to appear
89. telegram a message sent by telegraph
90. testimonial a written statement of support
91. testimony a written statement of evidence
92. text written words of a message
93. thank-you note a written expression of thanks
94. threat a written warning of harm
95. tip a brief written suggestion
96. ultimatum a final written demand
97. verification a written proof or confirmation
98. warning a written caution
99. wire a telegraphic message
100. writ a formal written legal order
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