| arch | |
| 1. n. An inverted U shape. | |
| 2. n. An arch-shaped arrangement of trapezoidal stones, designed to redistribute downward force outward. | |
| 3. n. (architecture) An architectural element having the shape of an arch | |
| 4. n. Any place covered by an arch; an archway. | |
| to pass into the arch of a bridge | |
| 5. n. (archaic, geometry) An arc; a part of a curve. | |
| 6. n. A natural arch-shaped opening in a rock mass. | |
| 7. n. (anatomy) Curved part of the bottom of a foot. | |
| 8. v. To form into an arch shape | |
| The cat arched its back | |
| 9. v. To cover with an arch or arches. | |
| 10. adj. Knowing, clever, mischievous. | |
| I attempted to hide my emotions, but an arch remark escaped my lips. | |
| 11. adj. Principal; primary. | |
| 12. n. (obsolete) A chief. | |
