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.
Monthly bills from the counties to the Marshals Service show how much jails are netting from housing federal inmates, regardless of whether they're being held on behalf of ICE, the FBI or another federal agency. Sophie Carson, jsonline.com, 24 July 2025 The lawsuit was filed against Roblox and Discord on behalf of an 11-year-old girl, identified as Jane Doe R. M., of Miami-Dade County, Florida. Alison Escalante, Forbes.com, 23 July 2025 Due to the immersive nature of most of the activities, parents and guardians will have to sign a waiver on behalf of their kids. Lynnette Nicholas, Parents, 23 July 2025 Two of Rose’s children, daughter Fawn and son Tyler, are now locked in a battle for control, while the dispute has also drawn in Rose’s longtime agent and representative, Mike Maguire, whom Fawn accuses of acting on behalf of the estate without proper legal authority. Michael McCann, Sportico.com, 23 July 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 29 Jul. 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

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