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100 Idioms Every Educated Adult Should Know

January 30, 2026

No. Term Definition
1. A blessing in disguise A good thing that seemed bad initially.
2. A dime a dozen Very common; not unique.
3. A drop in the bucket A small amount; barely makes impact.
4. A far cry from Very different from.
5. A feather in one’s cap An achievement to be proud of.
6. A fish out of water Uncomfortable in unfamiliar surroundings.
7. A leopard can’t change spots People cannot change inherent traits.
8. A penny for your thoughts Tell me what you’re thinking.
9. A picture’s worth 1,000 words Images convey meaning better than words.
10. A piece of cake Very easy to do.
11. A stitch in time saves nine Fix early to avoid bigger problems.
12. A tough nut to crack A difficult problem or person.
13. A wolf in sheep’s clothing Dangerous person disguised as harmless.
14. Above board Honest and legal.
15. Achilles’ heel A fatal weakness.
16. Across the board Applying to everyone or everything.
17. Add fuel to the fire Make a bad situation worse.
18. Against the clock Racing to finish before deadline.
19. All ears Listening attentively.
20. All in a day’s work Normal part of the job.
21. All talk, no action Says much, does little.
22. An arm and a leg Very expensive.
23. Apple of one’s eye Someone dearly loved.
24. As luck would have it By chance; fortunately or unfortunately.
25. At the drop of a hat Immediately; without hesitation.
26. Back to the drawing board Start over after failure.
27. Bark up the wrong tree Pursue a mistaken course.
28. Beat around the bush Avoid saying something directly.
29. Beggars can’t be choosers Don’t be picky when needy.
30. Behind the eight ball In a difficult position.
31. Bite off more than you can chew Take on too much.
32. Bite the bullet Endure pain; face difficulty bravely.
33. Bite the hand that feeds you Harm someone who helps you.
34. Blow off steam Release pent-up emotion.
35. Break the ice Ease tension in a new situation.
36. Bring home the bacon Earn a living.
37. Burn the midnight oil Work late into the night.
38. By the skin of your teeth Barely; by a narrow margin.
39. Call it a day Stop working for now.
40. Call the shots Be in control; make decisions.
41. Can’t hold a candle to Not as good as.
42. Cast a wide net Seek broadly for results.
43. Caught between two stools Torn between two choices.
44. Chip on your shoulder A resentful attitude.
45. Close but no cigar Nearly successful but not quite.
46. Cold feet Nervousness causing hesitation.
47. Cost an arm and a leg Be extremely expensive.
48. Cry over spilled milk Regret something that can’t be changed.
49. Cut corners Do something cheaply or carelessly.
50. Cut to the chase Get to the point.
51. Devil’s advocate Argue opposing view to test ideas.
52. Don’t count your chickens Don’t assume success before it happens.
53. Don’t put all eggs in 1 basket Don’t risk everything on one plan.
54. Down to the wire At the last possible moment.
55. Draw the line Set a limit or boundary.
56. Easier said than done Harder to do than to say.
57. Eat humble pie Admit fault and feel embarrassed.
58. Elephant in the room Obvious issue being ignored.
59. Every cloud has a silver lining Good can come from bad times.
60. Face the music Accept consequences.
61. Far and away By a great margin.
62. Feather your nest Enrich yourself, often selfishly.
63. Feel under the weather Feel ill.
64. Fifth wheel An unwanted extra person.
65. Find your feet Become comfortable in a new role.
66. Fish for compliments Seek praise indirectly.
67. Fit as a fiddle Very healthy.
68. Fly by the seat of your pants Improvise without a plan.
69. Get a taste of your own medicine Suffer treatment you gave others.
70. Get cold feet Lose nerve at the last moment.
71. Get out of hand Become uncontrollable.
72. Get the ball rolling Start an activity.
73. Give the benefit of doubt Assume good intentions without proof.
74. Go the extra mile Make special effort beyond required.
75. Good Samaritan One who helps a stranger.
76. Grasp at straws Try desperate measures.
77. Green light Permission to proceed.
78. Haste makes waste Rushing causes mistakes and inefficiency.
79. Have a bone to pick Have a complaint to discuss.
80. Hit the nail on the head Be exactly right.
81. In a nutshell In brief; summarized.
82. In the same boat In the same situation.
83. It takes two to tango Both parties share responsibility.
84. Jump on the bandwagon Join a popular trend.
85. Jump the gun Act too soon.
86. Keep your chin up Stay positive despite difficulties.
87. Kill two birds with 1 stone Achieve two goals with one action.
88. Know the ropes Understand how things work.
89. Last straw Final annoyance that ends patience.
90. Let sleeping dogs lie Avoid restarting old conflicts.
91. Like a bull in a china shop Clumsy and tactless.
92. Make a long story short Summarize briefly.
93. Miss the boat Miss an opportunity.
94. No pain, no gain Effort is required for improvement.
95. Not my cup of tea Not to my liking.
96. Off the beaten path Away from usual routes.
97. On the same page In agreement; understanding alike.
98. Once in a blue moon Very rarely.
99. Out of the frying pan From bad situation to worse.
100. Play devil’s advocate Argue contrary position for discussion.

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