behalf

noun

be·​half bi-ˈhaf How to pronounce behalf (audio)
-ˈhäf,
bē-
: interest, benefit
also : support, defense
argued in his behalf
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.

Phrases
on behalf of or in behalf of
: in the interest of
also : as a representative of
I wrote the letter on behalf of my client.

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.
Sean Boyle is overseeing the project on behalf of Roku The doc also features appearances from Pete Alonso, Mookie Betts, Freddie Freeman, Albert Pujols, Chris Berman, and Bob Costas. Peter White, Deadline, 17 June 2025 Wohlwend, smiling at times from the courtroom well, was among the staffers who restrained Max face down for nearly two hours in November 2018 after the boy spat at another classmate, according to a lawsuit filed on behalf of Max’s family following his death. Darrell Smith, Sacbee.com, 17 June 2025 Key Facts The Southern Environmental Law Center filed the 60-day intent to sue on behalf of the NAACP on Tuesday, alleging the company violated the Clean Air Act in Memphis over the past year, according to the notice of intent to sue cited on the SELC’s website. Yezen Saadah, Forbes.com, 17 June 2025 Sobel filed a similar action in the wake of the LAPD’s response to the 2020 protests on behalf of Black Lives Matter-L.A. and others who contended that LAPD caused scores of injuries by firing hard-foam projectiles. Libor Jany, Los Angeles Times, 17 June 2025 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 22 Jun. 2025.

Kids Definition

behalf

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

More from Merriam-Webster on behalf

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!