expand (up)on (something)(redirected from expand upon)
Also found in: Legal.
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.
See also: expand
expand (up)on somethingand 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?