| LITON | Came across suddenly, as an idea |
| HITON | Arrive at suddenly, as an idea |
| STALLED | Stopped suddenly, as an engine |
| SEIZEUP | Quit working suddenly, as an engine |
| STALL | Stop suddenly, as an engine |
| SWERVE | Turn sharply and suddenly, as to avoid an accident (6) |
| SUPERNOVA | A star whose brightness increases suddenly as a result of an explosion dispersing most of its material |
| SLAMON | Apply suddenly as brakes, |
| CRASHING | Collapsing suddenly, as the stock market |
| SPRINGSTOMIND | Comes suddenly, as a thought |
| SWOOPED | Descended suddenly, as a bird of prey |
| SOUND | Dive suddenly, as a whale |
| INASPIN | Falling suddenly, as prices |
| CUTINON | Join suddenly, as a conversation |
| VEEROFF | Leave suddenly, as by turning |
| SPRUNGOPEN | Moved suddenly, as a trapdoor |
| SNAPOUTOFIT | Recover suddenly, as from the doldrums |
| CRASH | Fail suddenly, as a laptop |
| HITSWITH | Gives suddenly, as bad news |
| SNOWBALL | Increase suddenly, as last of members now joining party |
