IPA: /ˈænəˌteɪtə/
KK: /ˈænəˌteɪtər/
A person who adds notes or comments to a text to explain or clarify it.
The annotator provided helpful insights in the margins of the book.
Annotator → It is formed from "ad-" (meaning to) and "notare" (meaning to mark). An annotator is someone who marks or adds notes to a text.
Think of someone 'marking' ('notare') something 'to' ('ad-') add information — that's what an annotator does.