ordering
n. C / U B1 Intermediate US //ˈɔɹdɝɪŋ// UK //ˈɔːdəɹɪŋ// or·der·ing
n. the way that things are arranged in a specific sequence or list. It helps you understand which item comes first, second, or last.
n. the specific arrangement or sequence of items within a set. Often used to describe the logical or chronological structure applied to data or objects.
The alphabetical ordering of the files makes them easy to find.
The teacher changed the ordering of the presentations so that the most difficult topics came first.
In mathematical set theory, a linear ordering ensures that for any two distinct elements, one must strictly precede the other within the sequence.
Usage
Uncountable when referring to the act of arranging; countable when referring to a specific sequence or arrangement style.