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.
In response to the report, CAA Football released a statement on behalf of Sarkisian's agents, Jimmy Sexton and Ed Marynowitz, to deny the claims that Sarkisian was looking for opportunities in the league. Jordan Sigler, MSNBC Newsweek, 26 Oct. 2025 The Feather Alert was issued on behalf of the Placer County Sheriff’s Office and is in effect for Placer, Sacramento, El Dorado and Sutter counties. Emma Hall, Sacbee.com, 25 Oct. 2025 Last week, a lawsuit was filed in state court on behalf of the 9-year-old daughter of Jeremy Moore. Dave Smith, Fortune, 25 Oct. 2025 The president and his surrogates have been waging an all-out public relations campaign on behalf of the administration’s favored trade tool. Kate Nishimura, Sourcing Journal, 24 Oct. 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 30 Oct. 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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