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100 Best Synonyms for “Lock”

September 19, 2026

100 Best Synonyms for

No. Item Definition
1. affix attach firmly
2. airtighten seal to stop air
3. anchor hold firmly in position
4. attach fasten to something
5. bar block with a rigid piece
6. batten down secure tightly against opening
7. berth bring to a secured mooring
8. bind tie or hold tightly
9. bolt secure with a bar
10. box in confine on all sides
11. brace support firmly in place
12. buckle fasten with a buckle
13. bundle tie together into a pack
14. button fasten with buttons
15. cage confine in an enclosure
16. chain secure with a chain
17. cinch tighten securely
18. clamp hold tightly with pressure
19. clasp fasten with a clasp
20. click shut close with a locking click
21. clip fasten with a clip
22. close move to a shut position
23. confine keep within limits
24. cordon off block access to an area
25. deadbolt secure with a deadbolt
26. dock secure at a berth
27. dog fasten tightly in place
28. draw shut pull to a closed state
29. embed fix deeply within
30. encase enclose completely
31. enclose surround and shut in
32. engage cause parts to catch
33. fasten close or attach firmly
34. fence off enclose to restrict entry
35. firm up make more secure
36. fix make firm or stable
37. fortify strengthen against attack
38. freeze fix so movement stops
39. fuse join into one solid piece
40. glue shut seal closed with adhesive
41. guard watch and secure
42. harden make more secure
43. hasp fasten with a hinged clasp
44. hem in surround and confine
45. hermetically seal seal completely airtight
46. hold closed prevent from opening
47. hold fast keep firmly in place
48. hook fasten with a hook
49. immobilize prevent movement
50. install put in place securely
51. interlock fit together securely
52. jam force tightly into place
53. join fasten or link together
54. keep shut maintain in closed position
55. lag fasten with lag screws
56. latch fasten with a catch
57. link connect closely together
58. lodge fix in a tight place
59. moor secure a vessel in place
60. mount fix onto a support
61. nail shut close with nails
62. obstruct block from opening or moving
63. occlude close off or block
64. package wrap and secure for handling
65. padlock secure with a padlock
66. park leave secured in place
67. peg fasten with a peg
68. pen in confine within boundaries
69. pin fasten with a pin
70. pull to close by pulling
71. put away store in a secure place
72. restrain hold back or confine
73. retain keep from moving away
74. rivet fasten permanently with rivets
75. root fix deeply and firmly
76. rope off block with a rope
77. seal close tightly or officially
78. secure fasten safely in place
79. set fast make firm and secure
80. sheathe enclose in a covering
81. shut close firmly
82. snap closed shut with a snap
83. snap shut close with a quick click
84. staple fasten with staples
85. stow place securely for storage
86. tether tie to restrict movement
87. tie fasten with string or cord
88. tighten make more secure by tension
89. trap confine so escape is hard
90. truss tie or bind tightly
91. turn the key secure with a key
92. vacuum-seal seal with no air
93. wall off separate with a barrier
94. waterproof seal against water
95. weatherproof seal against weather
96. wedge fix tightly by pressure
97. weld join by melting together
98. wrap up cover and secure completely
99. yoke fasten together or restrain
100. zip close with a zipper
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