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 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.
Two wars in as many years with Israel — both launched on other’s behalf but with outsized consequences borne here — have resulted in thousands of dead, a million-plus displacement crisis and the leveling and occupation of wide swaths of the country. Nabih Bulos, Los Angeles Times, 22 June 2026 One month after Kyle died at age 41 from severe pneumonia that progressed into sepsis, his wife, 40, shared an emotional tribute on behalf of herself and their kids — son Brexton, 11, and daughter Lennix, 4 — on Sunday, June 21. Desiree Anello, PEOPLE, 21 June 2026 Embassies are working on behalf of their citizens to get the Cambodian government to waive the overstay fines, but the process is slow. Shibani Mahtani, NPR, 21 June 2026 Todd volunteered on behalf of her job as a team member trainer at the Target Distribution Center in Woodland. Camila Pedrosa, Sacbee.com, 20 June 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 23 Jun. 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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