These days we have a range of books (and textbooks) that have an index at the end.
These indexes (pointers where relevant content is to be found), are cross-references on the book and points to where a given term can found out throughout the book´s chapters.
Just to cite two of them here, the Gramática Prática -Michaelis and the Cambridge Grammar of English, A Comprehensive Guide - Spoken and Written English Grammar and Usage [Cambridge Press], the latter to more advanced learners.
So, by way of example, the word ''about" goes like this:
about 164, 235b 253b
--adjectives followed by 5g
--as adverb 5b
--be about to 5c, 376, 404a
--common spoken uses of 5d
--nouns followed by 5e
--discuss, not used with 5f
--as preposition 5a
--verbs followed by 5f
Where the numbers 164, 235, 253 are the chapters the related topics are, and the letters are the subtopics (eg 5 f), the divisions that deals with different meanings or uses within topics.
Of course, one would study some item when in doubt about something related with the "entry word" about, it wouldn´t be necessary to see all subtopics in there (when somebody master the usage of a sense of the word).