af·​fi·​ant ə-ˈfī-ənt How to pronounce affiant (audio)
: one who swears to an affidavit
broadly : deponent

Examples of affiant in a Sentence

Recent Examples on the Web Your affiant submits this Criminal Complaint in support of the arrest of TEIXEIRA., 14 Apr. 2023 Afterward, Kelly would tell them to put down his name as the affiant. Eplunus Colvin, Arkansas Online, 2 Mar. 2023 The affiant is identified as a violent crimes detective with the Santa Fe County Sheriff's Department. NBC News, 17 Dec. 2021 Based on the information/observations set forth in paragraph 22 ad 24, affiant believes that the target may utilize said firearm against law enforcement during the execution of the warrant. Bruce Vielmetti, Milwaukee Journal Sentinel, 11 July 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'affiant.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


probably from affi(ance) entry 1 + -ant entry 1

First Known Use

1807, in the meaning defined above

Time Traveler
The first known use of affiant was in 1807

Dictionary Entries Near affiant

Cite this Entry

“Affiant.” Dictionary, Merriam-Webster, Accessed 29 May. 2024.

Legal Definition


af·​fi·​ant ə-ˈfī-ənt How to pronounce affiant (audio)
: a person who swears to an affidavit compare deponent, witness

Middle French, from present participle of affier to pledge faith, swear, from Medieval Latin affidare, ultimately from Latin ad to + fidere to trust

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