| Answer | Crossword Clue |
|---|---|
| MURK | It's difficult to see through |
| thick | (of darkness or a substance in the air) So black or dense as to be impossible or difficult to see through |
| thickest | (of darkness or a substance in the air) So black or dense as to be impossible or difficult to see through |
| thicker | (of darkness or a substance in the air) So black or dense as to be impossible or difficult to see through |
| PINHOLE | It's hard to see through |
| moviola | brand of projection device for a motion-picture film allowing one person to see the film through a viewer and control its motion and speed, used in film editing, preparing titles, etc. |
