Alternative form of preorder

plural of point of order

(mathematics) Formally, given two partially ordered sets A and B, the order ≤ on the Cartesian product A × B such that (a,b) ≤ (a′,b′) if and only if a < a′ or (a = a′ and b ≤ b′).

(UK, law) An order made by the Home Secretary to restrict an individual's liberty for the purpose of protecting members of the public from a risk of terrorism.

(politics) A motion calling attention to a breach of order of the rules.

simple past tense and past participle of call to order

Third-person singular simple present indicative form of call to order

(transitive) To formally signal the start of (a meeting or function or assembly or court).

plural of alphabetical order

simple past tense and past participle of mail-order