| 100% | IRIS | 4 | It controls the amount of light admitted |
| 100% | FSTOP | 5 | It controls the amount of light admitted |
| 51% | EXPOSURE | 8 | The amount of light that gets to a piece of film |
| 51% | IRIS | 4 | It controls the size of the pupil |
| 45% | EON | 3 | Amount of time it takes for a red light to change, hyperbolically |
| 44% | DARKEST | 7 | Having the least amount of light |
| 44% | BEAM | 4 | It travels at the speed of light |
| 43% | DAM | 3 | It can control the flow of water in a river |
| 42% | STAR | 4 | Heavenly body that emits the light of its own |
| 41% | BRAIN | 5 | It controls the body |
| 40% | QUANTIFIES | 10 | Measures the amount of |
| 39% | BASS | 4 | The amount of "thump" from a speaker |
| 39% | INTENSITY | 9 | The amount of exertion during an exercise |
| 39% | ADDS | 4 | Increases the amount of something |
| 39% | DDE | 3 | Measurement that indicates the amount of whole-body radiation and its effect on the body at a tissue depth of 1 cm (abbr.) |
| 39% | EXPOSURE | 8 | Amount of light reaching film or photographic sensor |
| 39% | HANDFUL | 7 | The amount of something that can be held |
| 39% | VOLUME | 6 | The amount of space that an object occupies |
| 39% | TRUCKLOAD | 9 | The amount of goods transported by a semi |
| 39% | PARIS | 5 | It's been called the "City of Light" and the "City of Love" |
| 39% | DARK | 4 | The opposite of light |
| 38% | STEERED | 7 | Controlled the direction of |
| 38% | STEER | 5 | Control the direction of |
| 38% | SHADOWS | 7 | The opposite of lights |
| 38% | MENORAH | 7 | It's lit over the course of a week |
| 38% | WORKLOAD | 8 | The amount of labor a person has to do |
| 38% | PREMIUM | 7 | The amount of money paid for an insurance policy |
| 38% | SNOWED | 6 | __ under, overwhelmed by the amount of work |
| 38% | EVALUATE | 8 | Gage or assess the amount of something |
| 38% | OPERATE | 7 | Control the functioning of machine |