sister-in-law

noun

sis·​ter-in-law ˈsi-st(ə-)rən-ˌlȯ How to pronounce sister-in-law (audio)
-tərn-ˌlȯ
plural sisters-in-law ˈsi-stər-zən-ˌlȯ How to pronounce sister-in-law (audio)
1
: the sister of one's spouse
2
a
: the wife of one's sibling
b
: the wife of one's spouse's sibling

Examples of sister-in-law in a Sentence

Recent Examples on the Web In one of the video clips, the Burlesque star could be seen posing for photos with her brother and sister-in-law at the event. Kimberlee Speakman, Peoplemag, 30 Mar. 2024 The resident, who had Parkinson’s disease and was bedridden, called her sister-in-law, Jean, to ask for help. Ciara McCarthy, Fort Worth Star-Telegram, 29 Mar. 2024 Back then, his interlocutor was Selina Scott, a formidable broadcaster who also happened to bear a strong resemblance to Andrew’s newish sister-in-law, Diana, Princess of Wales. Rebecca Mead, The New Yorker, 4 Apr. 2024 On Friday, Prince Harry and Meghan Markle issued a statement in reference to their sister-in-law’s diagnosis. Daniel Kreps, Rolling Stone, 24 Mar. 2024 On Friday, Meghan Markle and Prince Harry also shared their support for their sister-in-law in a statement. Can't get enough of PEOPLE's Royals coverage? Escher Walcott, Peoplemag, 23 Mar. 2024 Prince Harry and Meghan Markle are thinking of their sister-in-law from afar. Vogue, 22 Mar. 2024 Now, her brother- and sister-in-law are speaking out. Sara Vallone, Miami Herald, 22 Mar. 2024 Camp will play both Raegan and Maddie Lockwood, twin sisters-in-law to Joe Goldberg (Penn Badgley). Joe Otterson, Variety, 20 Mar. 2024

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

Word History

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of sister-in-law was in the 15th century

Dictionary Entries Near sister-in-law

Cite this Entry

“Sister-in-law.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sister-in-law. Accessed 18 Apr. 2024.

Kids Definition

sister-in-law

noun
sis·​ter-in-law
ˈsis-t(ə-)rən-ˌlȯ,
-tərn-ˌlȯ
plural sisters-in-law
-tər-zən-
1
: the sister of one's spouse
2
a
: the wife of one's brother
b
: the wife of one's spouse's brother

More from Merriam-Webster on sister-in-law

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