cosponsor

noun

co·​spon·​sor (ˌ)kō-ˈspän(t)-sər 

variants or co-sponsor

plural cosponsors or co-sponsors

: a joint sponsor

The senator was a cosponsor for both bills.

Michigan Tech Student Relay For Life is a participating cosponsor of this event.

—The Daily Mining Gazette

cosponsor transitive verb

or co-sponsor

cosponsored or co-sponsored; cosponsoring or co-sponsoring

This year Simpson is carrying on the legislative struggle without Mazzoli, who has declined to cosponsor the bill without support from the Democratic House leadership …

—George Russell

The following summer, Bingham returned to Machu Picchu with an expedition co-sponsored by the National Geographic Society.

—Duane Damon

cosponsorship

(ˌ)kō-ˈspän(t)-sər-ˌship 

noun

or co-sponsorship

Increasingly, large urban malls are being built with the co-sponsorship of city governments.

—Witold Rybczynski

Examples of cosponsor in a Sentence

Recent Examples on the Web

Schumer, a Democrat and cosponsor of the legislation, could invoke a Senate rule that would skip a committee hearing and send the bill directly to a floor vote by the full Senate. —Kate Gibson, CBS News, 6 Dec. 2024

State of play: The Senate bill, introduced last year by Ed Markey and Ted Cruz, racked up support from 62 Senate cosponsors. —Daniel Moore, Axios, 17 Sep. 2024

Frankel and Krajewski are distributing a memo seeking cosponsors for the bill planned for the 2025-2025 legislative session, online cannabis news source Marijuana Moment reported on Monday. —A.j. Herrington, Forbes, 2 Dec. 2024

The measure, which passed the House in November, had 62 cosponsors when it was introduced in the Senate last year. —Kate Gibson, CBS News, 21 Dec. 2024

Word History

First Known Use

1849, in the meaning defined above