Dictionary table.
I like having a dictionary table that defines terms or acronyms that are used in the rest of the doc. Typically three columns - Term, Definition, Further info. Eg. Term: GDP, Definition: Gross Domestic Product (The total production in the economy of a country), Further info: A link to say an Investopedia article explaining, or your own explanation.
Then wherever you use the term GDP in the doc type @ and then search in the dropdown for the entry in the dictionary table. The term will tehn be highlighted, and you can mouse-over for a pop-up, or click to go to the row in the table.
The second is that I generally prefer to have the information in a table, which makes it easier to search. You can always put bigger comments in a canvas column in the table.