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100 Best Synonyms for “Sustain”

August 26, 2026

100 Best Synonyms for

No. Item Definition
1. advance help move forward
2. aid help or support
3. allow let something continue
4. animate give life or energy
5. answer meet a need adequately
6. assist give help or support
7. attend to take care of
8. back give support to
9. bear hold up under weight
10. bolster strengthen or support
11. brace support and strengthen
12. buttress support or reinforce
13. care for look after and support
14. carry on continue doing or operating
15. carry through support to completion
16. cater for provide what is needed
17. conserve protect from loss or waste
18. continue keep going without stopping
19. cover be enough for costs
20. cultivate develop and support growth
21. enable make possible to continue
22. encourage give support or confidence
23. endure last through hardship
24. energize give energy to
25. equip provide what is needed
26. facilitate make continuation easier
27. feed supply what keeps alive
28. finance provide money for
29. fit out supply with equipment
30. follow through continue to completion
31. fortify strengthen against weakness
32. foster encourage growth or development
33. fuel provide energy for
34. fulfill meet completely
35. fund supply money for
36. further help progress or continue
37. go on continue happening or doing
38. help make easier to continue
39. hold support or bear up
40. invigorate give strength or energy
41. keep afloat prevent failure or collapse
42. keep alive prevent from dying or ending
43. keep going continue without stopping
44. keep in being maintain existence of
45. keep in force maintain as valid
46. keep in place maintain in position
47. keep intact preserve without damage
48. keep running maintain operation of
49. keep steady maintain without fluctuation
50. keep supplied continue providing necessities
51. keep up maintain at a needed level
52. last continue for a period
53. look after take care of
54. maintain keep at the same level
55. meet satisfy or fulfill
56. minister to care for supportively
57. nourish provide what is needed
58. nurture care for and help grow
59. operate keep functioning or working
60. outfit equip with needed items
61. patch up repair enough to continue
62. perpetuate cause to continue indefinitely
63. persist continue firmly or stubbornly
64. power supply energy to
65. preserve keep from changing or ending
66. prolong make last longer
67. promote help continue or advance
68. prop up support from falling or failing
69. provide for supply necessary support
70. provision supply with necessities
71. rebuild restore to working condition
72. reestablish set up firmly again
73. rehabilitate restore to health or usefulness
74. reinforce make stronger with support
75. renew make strong again
76. replenish fill up again
77. restore bring back to strength
78. revive restore strength or activity
79. run on continue for longer
80. salvage save from loss or ruin
81. satisfy meet a need or demand
82. secure make safe and stable
83. see through support until the end
84. serve meet the needs of
85. shore up support something weak
86. sponsor support a project or person
87. stabilize keep steady or balanced
88. steady make or keep stable
89. strengthen make stronger or firmer
90. subsidize support with money
91. succor give aid in hardship
92. supply provide what is needed
93. support hold up or keep going
94. tend care for regularly
95. underpin support as a basis
96. underwrite financially support or insure
97. uphold support or keep in effect
98. vitalize give life or vigor
99. weather survive a difficult period
100. withstand resist without giving way
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