PLACID
| Date | Clue |
|---|---|
| 2026-07-06 | Calm, as a lake |
| 2021-12-09 | Tranquil |
| 2021-06-27 | Even-tempered |
| 2021-05-24 | Tranquil |
| 2020-11-04 | Serene |
| 2019-10-17 | Not having so much as a ripple |
| 2009-09-29 | Even-tempered |
| 2008-09-20 | Opposite of turbulent |
| 1998-04-16 | Unruffled |
| 1997-02-09 | Lake name of two Olympics |