expand on/upon
Definition of expand on/upon
: to speak or write about (something) in a more complete or detailed way : elaborate on She declined to expand on her earlier statement. Please expand on that idea. Researchers will expand upon their data in a new study.
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expandplay
: to open up : unfold
: to increase the extent, number, volume, or scope of : enlarge
: to express at length or in greater detail
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