championpair
nounUK /ˈtʃæm.pi.ən.peər/
US /ˈtʃæm.pi.ən.per/
Two people who are the best at something together.
The championpair won every game at the school fair.
OTHER MEANINGS
2. Two animals that win a contest together.
The championpair of horses ran the fastest.
3. Two friends who always help each other win.
Mia and Leo are a championpair in the spelling bee.
4. A set of two things that are the very best.
These championpair boots kept my feet dry all winter.