What does "nominalization" mean?

A noun derived from an adjective, verb, etc., often (in English) by adding a suffix such as -ity, -tion or -ism.

Nominalization

Common synonyms include: nounification, substantivation, substantivation, substantivisation, substantivization.

noun

noun ·Rare ·Advanced level

Noun

1
A noun derived from an adjective, verb, etc., often (in English) by adding a suffix such as -ity, -tion or -ism. British, English, Oxford, US, countable
"Writers who overload their sentences with nominalizations tend to sound pompous and abstract."
2
The act or process of nominalizing; the use of such a noun. British, English, Oxford, US, uncountable
"The positive use of the feminine noun une rien has been gradually replaced by the nominalization of the pronoun and the adverb that commonly serve as negative auxiliaries, rien, un rien: “The word offers a short version of the evolution of the etymological meaning of chose inverted as néant (c. 1530)” (RT: DHLF)[…]"