switchpair
nounUK /ˈswɪtʃpeə/
US /ˈswɪtʃpɛr/
Two things that trade places with each other.
The twins did a switchpair, swapping seats before the teacher came in.
OTHER MEANINGS
2. A pair of switches that work together as one unit.
The electrician installed a switchpair to control both lights at once.
3. In games, two players who take turns playing each other's roles.
We formed a switchpair so each of us could try being the goalie.
4. A matched set of two items that can be used in either order.
These gloves are a switchpair, so either one fits either hand.