expand on/upon

phrasal verb

expanded on/upon; expanding on/upon; expands 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.

Examples of expand on/upon in a Sentence

Recent Examples on the Web

One year later, Marjanović insists that the work is only just beginning, as the organizers both incorporate and expand on the raft of changes introduced last year. —Christopher Vourlias, Variety, 14 Aug. 2025

The pair initially passed ideas and demos back and forth through Dropbox and Discord, and then met up in cities including Toronto and Vancouver, B.C., to expand on the music in the studio. —Katie Bain, Billboard, 11 Aug. 2025

Set up was simple, just unwrapping and leaving it to expand on the bed for a few hours before the first night’s sleep. —Nashia Baker, Architectural Digest, 23 July 2025

The new provisions expand on tax incentives under the 2022 CHIPS and Science Act, which provided grants of $39 billion and loans of $75 billion for U.S.-based semiconductor manufacturing projects. —Dylan Butts, CNBC, 2 July 2025