| Rating | Solver | Clue |
|---|---|---|
| HOUR | Time unit | |
| EPOCH | Geological time unit | |
| MINUTE | Unit of time | |
| ISSUE | Unit of time | |
| SECOND | Unit of time | |
| RATE | The gain or loss of a timepiece in a unit of time; as, daily rate; hourly rate; etc. | |
| FLUX | The quantity of a fluid that crosses a unit area of a given surface in a unit of time. | |
| TWELFTH-SECOND | A unit for the measurement of small intervals of time, such that 1012 (ten trillion) of these units make one second. | |
| BEAT | The rise or fall of the hand or foot, marking the divisions of time; a division of the measure so marked. In the rhythm of music the beat is the unit. | |
| C. G. S. | An abbreviation for Centimeter, Gram, Second. -- applied to a system of units much employed in physical science, based upon the centimeter as t... | |
| VELOCITY | Rate of motion; the relation of motion to time, measured by the number of units of space passed over by a moving body or point in a unit of tim... | |
| POUNDAL | ...econd, being the force which, acting on a pound avoirdupois for one second, causes it to acquire by the of that time a velocity of one foot per ... | |