Script: a collection of symbols used to represent text in one or more writing systems.
They seem to have updated the definition:
Script: A collection of letters and other written signs used to represent textual information in one or more writing systems. For example, Russian is written with a subset of the Cyrillic script; Ukrainian is written with a different subset. The Japanese writing system uses several scripts.
https://www.w3.org/International/questions/qa-scripts#what
They seem to have updated the definition: