1. A bone of contention – a subject of disagreement
2. A far cry from – very different from
3. A fish out of water – someone uncomfortable in a situation
4. A piece of cake – very easy
5. A stitch in time saves nine – deal with problems early
6. Above board – honest and legal
7. Achilles' heel – a weak spot
8. Add insult to injury – make a bad situation worse
9. Against all odds – despite difficulty
10. All ears – listening attentively
11. All roads lead to Rome – many ways lead to same result
12. Apple of discord – cause of quarrel
13. Apple of my eye – dearly loved person
14. At a snail's pace – very slowly
15. At loggerheads – in disagreement
16. At sixes and sevens – confused/disorganized
17. Back to square one – start over
18. Barking up the wrong tree – mistaken direction
19. Beat around the bush – avoid the point
20. Bite off more than you can chew – take on too much
21. Bite the bullet – face a difficult situation
22. Black sheep – disgrace to family/group
23. Blow hot and cold – keep changing attitude
24. Break a leg – good luck (theatre)
25. Break the ice – start a conversation in a tense situation
26. Bring home the bacon – earn a living
27. Burn midnight oil – work late
28. Burn the candle at both ends – overwork
29. By hook or by crook – by any means necessary
30. Call a spade a spade – speak frankly
31. Castles in the air – unrealistic dreams
32. Catch someone red-handed – catch in the act
33. Close but no cigar – almost but not successful
34. Cold feet – nervous before an event
35. Come rain or shine – whatever happens
36. Cross your fingers – hope for good luck
37. Cry over spilt milk – regret what can't be undone
38. Cut corners – do something poorly to save money/time
39. Cut to the chase – get to the point
40. Dark horse – unknown but wins
41. Don't count your chickens before they hatch – don't assume success
42. Donkey's years – a very long time
43. Drop in the ocean – very small amount
44. Eleventh hour – last possible moment
45. Every cloud has a silver lining – good comes from bad
46. Face the music – accept consequences
47. Feather in one's cap – an achievement
48. Flesh and blood – family/relatives
49. Foam at the mouth – be very angry
50. Get out of hand – lose control
51. Give the cold shoulder – ignore deliberately
52. Go against the grain – contrary to normal feeling
53. Go down in flames – fail spectacularly
54. Go the extra mile – do more than expected
55. Grease the palm – bribe someone
56. Greek to me – incomprehensible
57. Have an axe to grind – have a hidden motive
58. Hit the nail on the head – be exactly right
59. Hit the sack – go to sleep
60. Hold your horses – wait
61. In a nutshell – in brief
62. In hot water – in trouble
63. In the same boat – in the same situation
64. It takes two to tango – both parties responsible
65. Jump on the bandwagon – join a popular trend
66. Keep at arm's length – avoid close relationship
67. Kill two birds with one stone – achieve two things at once
68. Let sleeping dogs lie – avoid reviving old problems
69. Let the cat out of the bag – reveal a secret
70. Make a mountain out of a molehill – exaggerate
71. Make ends meet – manage finances
72. No pain, no gain – must suffer for success
73. Off the hook – no longer in trouble
74. On cloud nine – very happy
75. On thin ice – in a risky situation
76. Once in a blue moon – very rarely
77. Out of the blue – unexpectedly
78. Play devil's advocate – argue for sake of debate
79. Pull someone's leg – tease
80. Pull the wool over eyes – deceive
81. Put all eggs in one basket – risk everything on one plan
82. Put the cart before the horse – reverse proper order
83. Rome was not built in a day – great things take time
84. Run around in circles – busy but unproductive
85. Safe pair of hands – reliable person
86. Save for a rainy day – save for future need
87. See eye to eye – agree
88. Shape up or ship out – improve or leave
89. Sit on the fence – avoid choosing sides
90. Skeleton in the cupboard – hidden shameful secret
91. Spill the beans – reveal secret
92. Steal someone's thunder – take credit for another's idea
93. Take with a pinch of salt – don't fully believe
94. The ball is in your court – it's your turn to act
95. The early bird catches the worm – promptness brings reward
96. The last straw – final problem that causes collapse
97. The pot calling the kettle black – being hypocritical
98. Throw in the towel – give up
99. Tie the knot – get married
100. To cut a long story short – summarize
2. A far cry from – very different from
3. A fish out of water – someone uncomfortable in a situation
4. A piece of cake – very easy
5. A stitch in time saves nine – deal with problems early
6. Above board – honest and legal
7. Achilles' heel – a weak spot
8. Add insult to injury – make a bad situation worse
9. Against all odds – despite difficulty
10. All ears – listening attentively
11. All roads lead to Rome – many ways lead to same result
12. Apple of discord – cause of quarrel
13. Apple of my eye – dearly loved person
14. At a snail's pace – very slowly
15. At loggerheads – in disagreement
16. At sixes and sevens – confused/disorganized
17. Back to square one – start over
18. Barking up the wrong tree – mistaken direction
19. Beat around the bush – avoid the point
20. Bite off more than you can chew – take on too much
21. Bite the bullet – face a difficult situation
22. Black sheep – disgrace to family/group
23. Blow hot and cold – keep changing attitude
24. Break a leg – good luck (theatre)
25. Break the ice – start a conversation in a tense situation
26. Bring home the bacon – earn a living
27. Burn midnight oil – work late
28. Burn the candle at both ends – overwork
29. By hook or by crook – by any means necessary
30. Call a spade a spade – speak frankly
31. Castles in the air – unrealistic dreams
32. Catch someone red-handed – catch in the act
33. Close but no cigar – almost but not successful
34. Cold feet – nervous before an event
35. Come rain or shine – whatever happens
36. Cross your fingers – hope for good luck
37. Cry over spilt milk – regret what can't be undone
38. Cut corners – do something poorly to save money/time
39. Cut to the chase – get to the point
40. Dark horse – unknown but wins
41. Don't count your chickens before they hatch – don't assume success
42. Donkey's years – a very long time
43. Drop in the ocean – very small amount
44. Eleventh hour – last possible moment
45. Every cloud has a silver lining – good comes from bad
46. Face the music – accept consequences
47. Feather in one's cap – an achievement
48. Flesh and blood – family/relatives
49. Foam at the mouth – be very angry
50. Get out of hand – lose control
51. Give the cold shoulder – ignore deliberately
52. Go against the grain – contrary to normal feeling
53. Go down in flames – fail spectacularly
54. Go the extra mile – do more than expected
55. Grease the palm – bribe someone
56. Greek to me – incomprehensible
57. Have an axe to grind – have a hidden motive
58. Hit the nail on the head – be exactly right
59. Hit the sack – go to sleep
60. Hold your horses – wait
61. In a nutshell – in brief
62. In hot water – in trouble
63. In the same boat – in the same situation
64. It takes two to tango – both parties responsible
65. Jump on the bandwagon – join a popular trend
66. Keep at arm's length – avoid close relationship
67. Kill two birds with one stone – achieve two things at once
68. Let sleeping dogs lie – avoid reviving old problems
69. Let the cat out of the bag – reveal a secret
70. Make a mountain out of a molehill – exaggerate
71. Make ends meet – manage finances
72. No pain, no gain – must suffer for success
73. Off the hook – no longer in trouble
74. On cloud nine – very happy
75. On thin ice – in a risky situation
76. Once in a blue moon – very rarely
77. Out of the blue – unexpectedly
78. Play devil's advocate – argue for sake of debate
79. Pull someone's leg – tease
80. Pull the wool over eyes – deceive
81. Put all eggs in one basket – risk everything on one plan
82. Put the cart before the horse – reverse proper order
83. Rome was not built in a day – great things take time
84. Run around in circles – busy but unproductive
85. Safe pair of hands – reliable person
86. Save for a rainy day – save for future need
87. See eye to eye – agree
88. Shape up or ship out – improve or leave
89. Sit on the fence – avoid choosing sides
90. Skeleton in the cupboard – hidden shameful secret
91. Spill the beans – reveal secret
92. Steal someone's thunder – take credit for another's idea
93. Take with a pinch of salt – don't fully believe
94. The ball is in your court – it's your turn to act
95. The early bird catches the worm – promptness brings reward
96. The last straw – final problem that causes collapse
97. The pot calling the kettle black – being hypocritical
98. Throw in the towel – give up
99. Tie the knot – get married
100. To cut a long story short – summarize