behalf

noun

be·​half bi-ˈhaf How to pronounce behalf (audio)
-ˈhäf
bē-
: interest, benefit
also : support, defense
argued in his behalf
see also:
On Behalf of vs. in Behalf of: Usage Guide

A body of opinion favors in with the "interest, benefit" sense of behalf and on with the "support, defense" sense. This distinction has been observed by some writers but overall has never had a sound basis in actual usage. In current British use, on behalf (of) has replaced in behalf (of); both are still used in American English, but the distinction is frequently not observed.

Examples of behalf in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
After returning to the United States, investigators say O’Rourke continued the alleged scam by encouraging friends and family members to organize additional fundraising events on her behalf. Stepheny Price, FOXNews.com, 31 May 2026 The state treasurer manages the state’s Pooled Money Investment Account, which invests monies on behalf of state government and local jurisdictions and allocates state bond financing for projects related to education, infrastructure, the environment or affordable housing. Times Staff, Los Angeles Times, 31 May 2026 Missouri Attorney General’s lawsuit The City Council’s vote came as the Missouri Attorney General’s Office is suing the city on behalf of a group of Christian counselors. Eleanor Nash, Kansas City Star, 31 May 2026 Before this year’s tournament, Valerie Camillio, the new chair at the WTA, the women’s tour, met with Mauresmo to lobby on behalf of female players to get the nighttime assignment, though not all the players will be pleased by that. Matthew Futterman, New York Times, 31 May 2026 See All Example Sentences for behalf

Word History

Etymology

Middle English, from by + half half, side

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of behalf was in the 14th century

Browse Nearby Words

Cite this Entry

“Behalf.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/behalf. Accessed 4 Jun. 2026.

Kids Definition

behalf

noun
be·​half bi-ˈhaf How to pronounce behalf (audio)
-ˈhȧf
: useful aid : support
spoke in my behalf

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