SWITCH
6 letters
Historical clue formulations
- It's on-again, off-again — 2020-08-28
- Trade, as places — 2013-11-05
- Feature of Dr. Frankenstein's lab — 2012-01-04
- On/off ___ — 2011-06-07
- It's often flipped — 2005-10-13
- Reset — 2000-01-13
- On/off ___ — 1999-03-23