cosponsor
noun, verb
cosponsor is a noun meaning “A joint sponsor” (English Wiktionary, September 2026). It is spelled C-O-S-P-O-N-S-O-R and has 3 syllables, and it appears about once in every 7 million words in written English (wordfreq, 2021 data). The plural of cosponsor is cosponsors.
What does cosponsor mean?
noun
- 1
A joint sponsor.
verb
- 1
To sponsor jointly with another.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce cosponsor?
Cosponsor has 3 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of cosponsor
- cosponsors plural, present, singular, he/she/it
- co-sponsor
- cosponsoring participle, present
- cosponsored participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is cosponsor?
Cosponsor appears about once in every 7 million words in written English, the 81,375th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Words people confuse with cosponsor
Also written: co-sponsor (one word or two).
Sources: English Wiktionary (homophones, alternative spellings).
Where does cosponsor come from?
From co- + sponsor.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).