Important Idioms and Phrases starting with Alphabet- H
| S.No. | Idioms/Phrases | Meaning |
| 1. | Halcyon days | Peaceful days |
| 2. | Hammer and sickle | A symbolic representation of communism in general |
| 3. | Hammer and tongs | With great effort or energy |
| 4. | Hand and glove with | In close co-operation |
| 5. | Hang by a thread | Be in a risky situation |
| 6. | Hard nut to crack | A difficult problem to solve/ A person difficult to understand |
| 7. | Haul over the coals | To take to task, to reprimand |
| 8. | Have finger in the pie | To be involved in something |
| 9. | Have one’s hands full | To be completely occupied |
| 10. | Have one’s way | The way one wants |
| 11. | Have several irons in the fire | To be involved in many projects or activities at the same time |
| 12. | Hen-pecked husband | Admirer of one’s own wife in a servile manner |
| 13. | Herculean task | Task requiring tremendous effort |
| 14. | High and dry | In a deprived situation (alone) |
| 15. | High handed | Overbearing |
| 16. | High living | Living with comfort and ease |
| 17. | Hit below the belt | To strike unfairly |
| 18. | Hit the jackpot | Gaining a big/ great success (specially by luck) |
| 19. | Hit the nail on the head | To do the right thing at the right time |
| 20. | Hobson’s choice | No alternative |
| 21. | Hole and corner policy | Secret policy |
| 22. | Hue and cry | Any loud public outcry |
| 23. | Hush money | Money given to someone to keep something secret |