therein

adverb

there·​in t͟her-ˈin 

1

: in or into that place, time, or thing

2

: in that particular or respect

therein lies the problem

Examples of therein in a Sentence

The insurance covers the apartment and all the property therein.

His name was mentioned in the article, although he was incorrectly described therein as a medical doctor.

Recent Examples on the Web

Though research isn’t conclusive, studies suggest regularly consuming these sweeteners could mess with your microbiome, reducing your levels of supportive gut bugs while elevating the numbers of not-so-beneficial bacteria lurking therein. —Erica Sloan, SELF, 23 May 2025

Three women therein alternately tolerate and turn on each other. —Sophie Monks Kaufman, IndieWire, 22 May 2025

And the choreography comes off as clunky and sophomoric, with all the high school connotations therein. —Rod Stafford Hagwood, Sun Sentinel, 15 May 2025

Your provider can carefully examine your eye under a microscope and flip your lid up to safely fish out any contact lens or piece of a lens that might be lurking therein. —Amy Marturana Winderl, SELF, 30 Apr. 2025

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1

Phrases Containing therein

• therein lies
• therein lies the problem

Rhymes for therein

• aneurin
• crystallin
• eosin
• mandolin
• porphyrin
• underpin
• violin
• akin
• auxin
• buckskin
• chagrin
• deerskin

Kids Definition

therein

adverb

there·​in t͟ha-ˈrin 

t͟he-

1

: in or into that place, time, or thing

the world and all therein

2

: in that particular or respect

therein they disagreed