How often is 'sudden' used as a noun?

[Tamara]

Hi

all of a sudden

My dictionary says that sudden is rarely used as a noun, but Mr. Google doesn’t agree.

Dou you use 'a sudden'? (Or what word to you prefer to use instead)?
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It’s impossible to learn swimming without entering the water…

[Mister Micawber]

.
I don't have access to Google at the moment, so I'll have to take a look at those purported nouns later. However, I can't imagine sudden as a noun outside of that fixed adverbial phrase, all of a sudden.
.
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Native English teacher at Mister Micawber's

[Tamara]

on a sudden

Yes… You are right, Mister Micawber...
Sorry for my stupidity…

Most of 'top' occurrences actually are adverbial
'A sudden <noun>'…

Sory again for my hasty question...
_________________
It’s impossible to learn swimming without entering the water…