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.
Their investment has increased substantially over the past three years, going into three camps: how to make the process easier; how to make the process of donating more impactful and inspiring; and how to activate the community on behalf of individual and nonprofit organizers. Jack McCullough, Forbes.com, 16 Aug. 2025 Cervantes was present to give Hernandez two certificates on behalf of the California state senate and delivered a speech recognizing the athlete's championships. Jackson Thompson, FOXNews.com, 16 Aug. 2025 Strnad is a former union steward for Workers United and the founder and managing member of Drinks In The Seats, a political action committee that lobbies on behalf of in-seat beer vendors. Anna Kleiber, jsonline.com, 15 Aug. 2025 In a complaint filed this month in the Northern District of California, a Michigan mother, on behalf of her 10-year-old daughter, accuses Roblox Corporation of knowingly allowing predators to thrive on its platform. Christina Coulter, People.com, 15 Aug. 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 19 Aug. 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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