Thanks as always, macropod. I tried this but it doesn't work: I assume it's because I need to allow for initial u/c words that may precede the words of interest rather than must, because I also need the words highlighted if they are not preceded by an initial u/c word (eg 'the Notes').

So highlight only:
The / Each [and other initial u/c words added to list] Note/Notes [not followed by a capital letter]
[any initial l/c word] Note/Notes [not followed by a capital letter]

Is it possible to tweak the code for this to work?