herein

adverb

here·​in hir-ˈin How to pronounce herein (audio)
: in this
the abbreviation used herein

Examples of herein in a Sentence

For an explanation of the abbreviations used herein, see the section entitled “Abbreviations in this Work.”
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Word History

First Known Use

before the 12th century, in the meaning defined above

Time Traveler
The first known use of herein was before the 12th century

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Cite this Entry

“Herein.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/herein. Accessed 28 Jan. 2026.

Kids Definition

herein

adverb
here·​in hi(ə)r-ˈin How to pronounce herein (audio)
: in this

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