A more thorough explanation:

Definition: Annotatio is a Latin word that means "note" or "annotation".

Example: When reading a book, you might make an annotatio in the margin to remind yourself of an important point or to ask a question.

Explanation: Annotatio refers to the act of adding a note or comment to a text. This can be done for a variety of reasons, such as to clarify a confusing passage, to highlight an important point, or to ask a question. The example given illustrates how annotatio can be used when reading a book to help the reader better understand and engage with the text.