mainrule
nounUK /ˈmeɪn.ruːl/
US /ˈmeɪn.ruːl/
The most important rule that everyone must follow.
The mainrule of the game is to share the ball with your friends.
RELATED WORDS
OTHER MEANINGS
2. The first or leading rule in a list or set.
Read the mainrule before you look at the smaller ones.
3. A rule that controls how other rules work.
The mainrule says all other rules must be fair.
4. The rule that matters most in a certain place.
At our school, the mainrule is to be kind to everyone.