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.
The 30-year-old, who was born in a refugee camp in Syria before going on to graduate from Columbia, had played a prominent role negotiating on behalf of pro-Palestinian protesters at the university. Hira Humayun, CNN Money, 11 July 2025 The suit, filed in the San Diego County Superior Court in March, seeks class action status on behalf of all Californians. Los Angeles Times, 11 July 2025 Moscow is not alone in waging a shadow war against Western nations, although other powers focus more on cyberattacks: The US arrested a Chinese national Tuesday for allegedly stealing COVID-19 research and mass-hacking email servers on behalf of Beijing. semafor.com, 11 July 2025 Now, a class-action suit on behalf of children and parents impacted by Trump’s order will proceed. Philippa Pham Hughes, Time, 11 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 14 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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