variants:
or co-anchor
plural coanchors or co-anchors
Definition of coanchor
: a newscaster who shares the duties of anchoring a news broadcast
The scene segues to a discussion between the program's coanchors and a bioethicist.— Michael Wolfert She had been with the show since 1984 and was rumored as a candidate to succeed Dan Rather, the anchorman of the CBS Evening News, or to join him as a co-anchor of the nightly newscast. — The Wall Street Journal
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Merriam-Webster unabridged
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Time Traveler for coanchor
The first known use of coanchor was in 1971
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