| Definition | Word |
| The leaves of the shrub Catha edulis that have the effect of a euphoric stimulant | |
| A pretender to medical skill | |
| A four-sided enclosure especially when surrounded by buildings | |
| Lasting for four years or every fourth year | |
| Multiply by four | |
| A drink or to drink deeply | |
| A precarious or difficult position | |
| A thick-shelled clam | |
| Any of various small American game birds | |
| Marked by beauty or elegance | |
| An instance of shaking or trembling | |
| A skill that fits a person (as for an office) | |
| A feeling of uneasiness about a point of conscience, honor or propriety | |
| To determine, express or measure the quantity of | |
| An abrupt transition (as of an electron) from one discrete energy state to another | |
| A state of enforced isolation | |
| A particle that carries a fractional electric charge that is constituent of elementary particles | |
| A verbal conflict between antagonists | |
| An open excavation usually for obtaining building stone, slate or limestone | |
| The stern area of a ship's upper deck | |