as in language
the stock of words, pronunciation, and grammar used by a people as their basic means of communication
although the anthropologist could speak the local language fairly well, she was always glad to find someone who shared her mother tongue
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Recent Examples of mother tongue
While many nations have codified their mother tongue—France with French, Japan with Japanese, or Mexico with Spanish—America has always relied on practice and practicality rather than statute.
—
Doug Melville, Forbes.com, 15 Sep. 2025
Japanese is the only language that leaves Li’s mouth, but her occasional inner monologues are in her mother tongue, the most crucial example expressing her growing conflict with the very act of writing itself.
—Josh Slater-Williams, IndieWire, 17 Aug. 2025
Many countries offer visas for language learning, which are student visas specifically designed for people interested in studying the mother tongue of a destination.
—Solo Travel, AFAR Media, 14 Aug. 2025
About three-quarters of Singapore’s residents claim Chinese descent and, at the same time, English is its mother tongue and business lingua franca.
—Kevin West, Travel + Leisure, 16 July 2025
See All Example Sentences for mother tongue
Doug Melville, Forbes.com, 15 Sep. 2025
Japanese is the only language that leaves Li’s mouth, but her occasional inner monologues are in her mother tongue, the most crucial example expressing her growing conflict with the very act of writing itself.
—Josh Slater-Williams, IndieWire, 17 Aug. 2025
Many countries offer visas for language learning, which are student visas specifically designed for people interested in studying the mother tongue of a destination.
—Solo Travel, AFAR Media, 14 Aug. 2025
About three-quarters of Singapore’s residents claim Chinese descent and, at the same time, English is its mother tongue and business lingua franca.
—Kevin West, Travel + Leisure, 16 July 2025
See All Example Sentences for mother tongue
Recent Examples of Synonyms for mother tongue
Noun
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Despite speaking different languages, Toro Sepulveda and Henry became close friends, both said.—
Nuria Martinez-Keel,
Oklahoma Voice,
10 Feb. 2026
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The new program at Butler is one of just five Deaf education programs in the country with a focus on spoken language, according to the program’s website.—
Claire Rafford,
IndyStar,
9 Feb. 2026
Noun
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Her outfit stayed inside Browne’s gray suit vocabulary, layering a glen-check blazer with strong shoulders layered over a matching waist panel and pleated detail at the hip, finished with the brand’s red-white-blue grosgrain tab at the hem.—
Maggie Clancy,
Footwear News,
7 Feb. 2026
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Moira, a career-capping (and Emmy-winning) role in the comedy created by Eugene and son Dan Levy, brought O’Hara legions of new fans — and elevated a new vocabulary.—
Jocelyn Noveck,
Mercury News,
5 Feb. 2026
Noun
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After 35 rounds of radiation and painful robotic surgery on his tongue, Coulier can finally begin to recover from his cancer battle.—
Lauryn Overhultz,
FOXNews.com,
8 Feb. 2026
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This neutral running shoe has a slim, knitted tongue that floats over the top of your feet, locking them in without applying uncomfortable pressure.—
Amelia McBride,
Travel + Leisure,
7 Feb. 2026
Noun
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Steven Gebelin, who represented Puig in 2021 and 2022, testified at trial that his then-client tried to be helpful during the interview but, because the interpreter’s Spanish dialect differed from Puig’s, his answers were translated poorly.—
Steve Henson,
Los Angeles Times,
6 Feb. 2026
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Puig’s former attorney Steven Gebelin testified that during the January 2022 interview, Puig tried to be helpful in answering the investigators’ questions and the interpreter struggled with Puig’s Spanish dialect, according to the New York Times.—
Jaimie Ding,
Chicago Tribune,
6 Feb. 2026
Noun
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But as the practice evolved, eager writers like Jefferson and John Adams (but not George Washington or James Madison, for instance), gravitated to a richer, sympathy-bearing idiom, which no doubt bled into intimate speech, now lost.—
Literary Hub,
Literary Hub,
29 Jan. 2026
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All's fair in love and war — an idiom that Cressida (second from left, played by Jessica Madsen) and her meddling mama would do well to remember while courting the Prince!—
Sophie Dodd,
PEOPLE,
29 Jan. 2026
Cite this Entry
“Mother tongue.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/mother%20tongue. Accessed 12 Feb. 2026.
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