behalf

noun

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

see also on behalf of

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.

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 child is both the beneficiary and the legal owner of the account, while an adult acts on the child’s behalf until age 18. Virginia Hammerle, Dallas Morning News, 15 Feb. 2026 Partnering with billionaires Ken Griffin and Stephen Ross, Simas is shepherding a high-stakes campaign to rebrand the Sunshine State, on behalf of top leaders from more than 200 companies across the state. Nick Lichtenberg, Fortune, 15 Feb. 2026 Lena Marie contacted the center on Antusas’ behalf when the two were just friends. Amy Lavalley, Chicago Tribune, 15 Feb. 2026 These are effectively offshore hubs which are set up on behalf of international companies. Arjun Kharpal, CNBC, 15 Feb. 2026 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 16 Feb. 2026.

Kids Definition

behalf

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

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