to give more details about something that you have said or written
He mentioned one or two ideas that he'd had but he didn't expand on them.
phraseexpand upon !Expand upon is more formal than expand on and is mostly used in writing. expand on/upon sth to give more details or information about something that you have already said or written: I'd like to expand on that point in a minute.Hutton expands on this theme in the next chapter of his book.■ SIMILAR TO: enlarge on/upon
(redirected from expand upon)
expand (up)on (something)
To discuss a topic in more detail. This is such an important point that I'd like you to expand upon it when you revise your paper.
expand (up)on something
and enlarge (up)on something
Fig. to add detail to a report about something; to say more about something. Would you please expand upon that last remark?Would you care to enlarge upon your remarks?