In databases you might take about one-to-many. This means there's one thing that maps to zero or more others.
In this kind of style I'm looking for words that define min/max amounts of things. So far, I have:
min max one 1 1 many 0 infinite optional 0 1 ??? 1 infinite
Is there a single word that fits '???' to mean more than one?
Do you have better alternatives for 'optional'?
I'm wondering if there are any conventional names for those concepts?