Would you please expand on that last remark? Would you care to enlarge upon your remarks?.
If you expand on or expand upon something, you give more information or details about it when you write or talk about it. The president used today's speech to expand on remarks he made last month
expand on
Hyphenation
ex·pand on
Turkish pronunciation
îkspänd ôn
Pronunciation
/əkˈspand ˈôn/ /ɪkˈspænd ˈɔːn/
Etymology
[ ik-'spand ] (verb.) 15th century. Middle English expaunden, from Latin expandere, from ex- + pandere to spread; more at FATHOM.