Take the 2-minute tour ×  Something like 'Optionality' or
'Ordinality'? (It's similar in kind to the words "Arity" and
"Cardinality")  Example: "Fred listed the XXXity of each
parameter, noting whether it was optional or mandatory"  Follow-
up question: What part of speech is this?  share|improve this
question Optionality is obviously a noun (you are even using it
with a definite article in your example) and is included as such
in several dictionaries (Wiktionary, Merriam-Webster, Collins).
And in fact some dictionaries have a dedicated entry for the
suffix -ity. –  RegDwigнt Apr 4 '13 at 10:16 I see - as in "noun
referring to a state or quality"... so there isn't a specific
word for this? –  Richard Inglis Apr 4 '13 at 10:32 How about
'Necessity'? Does a thesaurus help? –  Mitch Apr 4 '13 at 12:00
Are looking for a part of speech more refined than 'noun'?
You're looking for an abstract concept but there's nothing
grammatically special about that. –  Mitch Apr 4 '13 at 12:03  2
Answers 2  There are a few recen