Related Clues:
- __ year (2008 or 2012)
- Look before you do this
- Add liquor to, as punch
- One way to tackle a hurdle?
- Sudden increase on a graph
- Springing movement
- Look before you __
- Word with ''Lambeau'' or ''quantum''
- Word with ''quantum''
- Acknowledge 2/29?
- Word with ''frog'' or ''year''
- Hurdle
- Leave the ground, in a way
- Event celebrated in this puzzle, and an example of how the theme works
- Abrupt increase on a graph